webcam: cheese non mi permette di registrare video

Fedora Linux Hardware
#1

Buongiorno a tutti.
anche con Fedora 20 ho gli stessi problemi:
non riesco a registrare i video.
da terminale da il seguente errore:

[code][mario@localhost ~]$ cheese

(cheese:2389): GLib-GObject-WARNING **: value “5,000000” of type ‘gdouble’ is invalid or out of range for property ‘delaytime’ of type ‘gdouble’

(cheese:2389): GStreamer-CRITICAL **: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

** (totem-video-thumbnailer:2764): WARNING **: Couldn’t connect to accessibility bus: Failed to connect to socket /tmp/dbus-p2cZHw93ls: Permesso negato
totem-video-thumbnailer couldn’t process file: ‘file:///home/mario/Video/Webcam/2013-12-27-122106.webm’
Reason: Took too much time to process.

(cheese:2389): GnomeDesktop-WARNING **: Unable to create loader for mime type video/webm: Formato del file di immagine non riconosciuto

(cheese:2389): GnomeDesktop-WARNING **: Error creating thumbnail for file:///home/mario/Video/Webcam/2013-12-27-122106.webm: Formato del file di immagine non riconosciuto

** (cheese:2389): WARNING **: could not generate thumbnail for /home/mario/Video/Webcam/2013-12-27-122106.webm (video/webm)

[mario@localhost ~]$[/code]
la prima riga appare sempre appena accedo a Cheese, la rimanenza quando provo a fare un video.

[code][mario@localhost ~]$ lsusb -v

Bus 002 Device 007: ID 045e:075d Microsoft Corp. LifeCam Cinema
Couldn’t open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x045e Microsoft Corp.
idProduct 0x075d LifeCam Cinema
bcdDevice 1.05
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 1429
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 14 Video
bFunctionSubClass 3 Video Interface Collection
bFunctionProtocol 0
iFunction 4
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 4
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 85
dwClockFrequency 30.000000MHz
bInCollection 1
baInterfaceNr( 0) 1
VideoControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Camera Sensor
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength 0
bControlSize 3
bmControls 0x00020a2a
Auto-Exposure Mode
Exposure Time (Absolute)
Focus (Absolute)
Zoom (Absolute)
PanTilt (Absolute)
Focus, Auto
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 5
iTerminal 0
VideoControl Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 4 (SELECTOR_UNIT)
bUnitID 3
bNrInPins 1
baSource( 0) 1
iSelector 0
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 4
bSourceID 3
wMaxMultiplier 0
bControlSize 2
bmControls 0x0000155b
Brightness
Contrast
Saturation
Sharpness
White Balance Temperature
Backlight Compensation
Power Line Frequency
White Balance Temperature, Auto
iProcessing 0
bmVideoStandards 0x1b
None
NTSC - 525/60
SECAM - 625/50
NTSC - 625/50
VideoControl Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 5
guidExtensionCode {29a787c9-d359-6945-8467-ff0849fc19e8}
bNumControl 16
bNrPins 1
baSourceID( 0) 4
bControlSize 2
bmControls( 0) 0xff
bmControls( 1) 0xff
iExtension 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
VideoStreaming Interface Descriptor:
bLength 15
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 2
wTotalLength 1075
bEndPointAddress 129
bmInfo 0
bTerminalLink 2
bStillCaptureMethod 1
bTriggerSupport 1
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 27
bmaControls( 1) 27
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 1
bNumFrameDescriptors 12
guidFormat {59555932-0000-1000-8000-00aa00389b71}
bBitsPerPixel 16
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 2 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x01
Still image supported
wWidth 640
wHeight 480
dwMinBitRate 36864000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 2
bmCapabilities 0x01
Still image supported
wWidth 1280
wHeight 720
dwMinBitRate 110592000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 1843200
dwDefaultFrameInterval 1000000
bFrameIntervalType 2
dwFrameInterval( 0) 1000000
dwFrameInterval( 1) 1333333
VideoStreaming Interface Descriptor:
bLength 38
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 3
bmCapabilities 0x01
Still image supported
wWidth 960
wHeight 544
dwMinBitRate 62668800
dwMaxBitRate 125337600
dwMaxVideoFrameBufferSize 1044480
dwDefaultFrameInterval 666666
bFrameIntervalType 3
dwFrameInterval( 0) 666666
dwFrameInterval( 1) 1000000
dwFrameInterval( 2) 1333333
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 4
bmCapabilities 0x01
Still image supported
wWidth 800
wHeight 448
dwMinBitRate 43008000
dwMaxBitRate 114688000
dwMaxVideoFrameBufferSize 716800
dwDefaultFrameInterval 500000
bFrameIntervalType 4
dwFrameInterval( 0) 500000
dwFrameInterval( 1) 666666
dwFrameInterval( 2) 1000000
dwFrameInterval( 3) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 5
bmCapabilities 0x01
Still image supported
wWidth 640
wHeight 360
dwMinBitRate 27648000
dwMaxBitRate 110592000
dwMaxVideoFrameBufferSize 460800
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 6
bmCapabilities 0x01
Still image supported
wWidth 424
wHeight 240
dwMinBitRate 12211200
dwMaxBitRate 48844800
dwMaxVideoFrameBufferSize 203520
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 7
bmCapabilities 0x01
Still image supported
wWidth 352
wHeight 288
dwMinBitRate 12165120
dwMaxBitRate 48660480
dwMaxVideoFrameBufferSize 202752
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 8
bmCapabilities 0x01
Still image supported
wWidth 320
wHeight 240
dwMinBitRate 9216000
dwMaxBitRate 36864000
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 38
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 9
bmCapabilities 0x01
Still image supported
wWidth 800
wHeight 600
dwMinBitRate 57600000
dwMaxBitRate 115200000
dwMaxVideoFrameBufferSize 960000
dwDefaultFrameInterval 666666
bFrameIntervalType 3
dwFrameInterval( 0) 666666
dwFrameInterval( 1) 1000000
dwFrameInterval( 2) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 10
bmCapabilities 0x01
Still image supported
wWidth 176
wHeight 144
dwMinBitRate 3041280
dwMaxBitRate 12165120
dwMaxVideoFrameBufferSize 50688
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 11
bmCapabilities 0x01
Still image supported
wWidth 160
wHeight 120
dwMinBitRate 2304000
dwMaxBitRate 9216000
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 12
bmCapabilities 0x01
Still image supported
wWidth 1280
wHeight 800
dwMinBitRate 163840000
dwMaxBitRate 163840000
dwMaxVideoFrameBufferSize 2048000
dwDefaultFrameInterval 1000000
bFrameIntervalType 1
dwFrameInterval( 0) 1000000
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 1 (BT.709,sRGB)
bTransferCharacteristics 1 (BT.709)
bMatrixCoefficients 4 (SMPTE 170M (BT.601))
VideoStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 6 (FORMAT_MJPEG)
bFormatIndex 2
bNumFrameDescriptors 11
bFlags 0
Fixed-size samples: No
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 1 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 1
bmCapabilities 0x01
Still image supported
wWidth 640
wHeight 480
dwMinBitRate 36864000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 2
bmCapabilities 0x01
Still image supported
wWidth 1280
wHeight 720
dwMinBitRate 110592000
dwMaxBitRate 442368000
dwMaxVideoFrameBufferSize 1843200
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 3
bmCapabilities 0x01
Still image supported
wWidth 960
wHeight 544
dwMinBitRate 62668800
dwMaxBitRate 250675200
dwMaxVideoFrameBufferSize 1044480
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 4
bmCapabilities 0x01
Still image supported
wWidth 800
wHeight 448
dwMinBitRate 43008000
dwMaxBitRate 172032000
dwMaxVideoFrameBufferSize 716800
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 5
bmCapabilities 0x01
Still image supported
wWidth 640
wHeight 360
dwMinBitRate 27648000
dwMaxBitRate 110592000
dwMaxVideoFrameBufferSize 460800
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 6
bmCapabilities 0x01
Still image supported
wWidth 800
wHeight 600
dwMinBitRate 57600000
dwMaxBitRate 230400000
dwMaxVideoFrameBufferSize 960000
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 7
bmCapabilities 0x01
Still image supported
wWidth 416
wHeight 240
dwMinBitRate 11980800
dwMaxBitRate 47923200
dwMaxVideoFrameBufferSize 199680
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 8
bmCapabilities 0x01
Still image supported
wWidth 352
wHeight 288
dwMinBitRate 12165120
dwMaxBitRate 48660480
dwMaxVideoFrameBufferSize 202752
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 9
bmCapabilities 0x01
Still image supported
wWidth 176
wHeight 144
dwMinBitRate 3041280
dwMaxBitRate 12165120
dwMaxVideoFrameBufferSize 50688
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 10
bmCapabilities 0x01
Still image supported
wWidth 320
wHeight 240
dwMinBitRate 9216000
dwMaxBitRate 36864000
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 11
bmCapabilities 0x01
Still image supported
wWidth 160
wHeight 120
dwMinBitRate 2304000
dwMaxBitRate 9216000
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 1333333
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 1 (BT.709,sRGB)
bTransferCharacteristics 1 (BT.709)
bMatrixCoefficients 4 (SMPTE 170M (BT.601))
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0080 1x 128 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0100 1x 256 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 5
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0c00 2x 1024 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 6
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1400 3x 1024 bytes
bInterval 1
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 2
bInterfaceCount 2
bFunctionClass 1 Audio
bFunctionSubClass 2 Streaming
bFunctionProtocol 0
iFunction 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 39
bInCollection 1
baInterfaceNr( 0) 3
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0202 Desktop Microphone
bAssocTerminal 0
bNrChannels 1
wChannelConfig 0x0000
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 5
bSourceID 1
bControlSize 1
bmaControls( 0) 0x01
Mute Control
bmaControls( 1) 0x02
Volume Control
iFeature 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 3
wTerminalType 0x0101 USB Streaming
bAssocTerminal 1
bSourceID 5
iTerminal 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 3
bDelay 1 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 29
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 2
bBitResolution 16
bSamFreqType 7 Discrete
tSamFreq 0] 8000
tSamFreq 1] 16000
tSamFreq 2] 22050
tSamFreq 3] 24000
tSamFreq 4] 32000
tSamFreq 5] 44100
tSamFreq 6] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0100 1x 256 bytes
bInterval 4
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 0 Undefined
wLockDelay 0 Undefined[/code]
qualche idea?

#2

non so’ proprio che fare… non mi aiuta nessuno?
compro un’altra webcam?
eppure quando l’ho acquistata anni fa’ funzionava benissimo con fedora :frowning:

#3

Leggendo su http://www.ideasonboard.org/uvc/ ho notato che il tuo device ha una bella http://www.ideasonboard.org/uvc/#footnote-13. Magari ti può aiutare.
Domanda: hai già provato il programma http://guvcview.sourceforge.net/? Si trova in RPMFusion…

#4

ho provato ora il programma menzionato. quando vado a registrae un video, si blocca e crasha.
amen, butterò nel cestino questa webcam. l’unica cosa strana è che funzionava bene con fedora 16 (o 17)

#5

Hai provato a usare il quirk richiamato al post #3?

# rmmod uvcvideo ; modprobe uvcvideo quirks=0x80
#6

Oltre al suggerimento di tempus, aggiungo di provare a variare il parametro “Uscita della webcam” nella sezione “Video e file” di guvcview: a volte bisogna cercare l’impostazione più adatta al proprio dispositivo. Ti potrebbe aiutare l’output di:

$ v4l2-ctl --all

Magari faccelo vedere. Il comando si trova nel pacchetto v4l-utils.

#7

si, ho provato il quirk ma il risultato non ha avuto i cambiamenti sperati.
uvcvideo e cheese continuano a bloccarsi quando cerco di fare un video…
anzi, per essere precisi, quando tento di fermare la registrazione.

$ v4l2-ctl --all Driver Info (not using libv4l2): Driver name : uvcvideo Card type : Microsoft® LifeCam Cinema(TM) Bus info : usb-0000:00:1d.7-6 Driver version: 3.12.5 Capabilities : 0x84000001 Video Capture Streaming Device Capabilities Device Caps : 0x04000001 Video Capture Streaming Priority: 2 Video input : 0 (Camera 1: ok) Format Video Capture: Width/Height : 640/480 Pixel Format : 'MJPG' Field : None Bytes per Line: 0 Size Image : 614400 Colorspace : SRGB Crop Capability Video Capture: Bounds : Left 0, Top 0, Width 640, Height 480 Default : Left 0, Top 0, Width 640, Height 480 Pixel Aspect: 1/1 Streaming Parameters Video Capture: Capabilities : timeperframe Frames per second: 30.000 (30/1) Read buffers : 0 brightness (int) : min=30 max=255 step=1 default=133 value=133 contrast (int) : min=0 max=10 step=1 default=5 value=5 saturation (int) : min=0 max=200 step=1 default=83 value=83 white_balance_temperature_auto (bool) : default=1 value=1 power_line_frequency (menu) : min=0 max=2 default=2 value=2 white_balance_temperature (int) : min=2800 max=10000 step=1 default=4500 value=4500 flags=inactive sharpness (int) : min=0 max=50 step=1 default=25 value=25 backlight_compensation (int) : min=0 max=10 step=1 default=0 value=0 exposure_auto (menu) : min=0 max=3 default=1 value=3 exposure_absolute (int) : min=5 max=20000 step=1 default=156 value=156 flags=inactive pan_absolute (int) : min=-201600 max=201600 step=3600 default=0 value=201600 tilt_absolute (int) : min=-201600 max=201600 step=3600 default=0 value=201600 focus_absolute (int) : min=0 max=40 step=1 default=0 value=0 focus_auto (bool) : default=0 value=0 zoom_absolute (int) : min=0 max=10 step=1 default=0 value=0 [mario@localhost ~]$ provo col suggerimento di ergosum a fare variazioni nelle impostazioni video.

EDIT:

aggiungo cosa dice il terminale quando faccio partire guvcview

[code]$ guvcview
guvcview 1.6.1
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
Cannot connect to server socket err = File o directory non esistente
Cannot connect to server request channel
jack server is not running or cannot be started
video device: /dev/video0
Init. Microsoft® LifeCam Cinema™ (location: usb-0000:00:1d.7-6)
{ pixelformat = ‘YUYV’, description = ‘YUV 4:2:2 (YUYV)’ }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/10, 2/15,
{ discrete: width = 960, height = 544 }
Time interval between frame: 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 448 }
Time interval between frame: 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 640, height = 360 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 424, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 600 }
Time interval between frame: 1/15, 1/10, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 800 }
Time interval between frame: 1/10,
{ pixelformat = ‘MJPG’, description = ‘MJPEG’ }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 960, height = 544 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 448 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 640, height = 360 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 600 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 416, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ pixelformat = ‘RGB3’, description = ‘RGB3’ }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 960, height = 544 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 448 }
Time interval between frame: 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 640, height = 360 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 424, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 600 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 800 }
Time interval between frame: 1/10,
{ discrete: width = 416, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ pixelformat = ‘BGR3’, description = ‘BGR3’ }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 960, height = 544 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 448 }
Time interval between frame: 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 640, height = 360 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 424, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 600 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 800 }
Time interval between frame: 1/10,
{ discrete: width = 416, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ pixelformat = ‘YU12’, description = ‘YU12’ }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 960, height = 544 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 448 }
Time interval between frame: 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 640, height = 360 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 424, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 600 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 800 }
Time interval between frame: 1/10,
{ discrete: width = 416, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ pixelformat = ‘YV12’, description = ‘YV12’ }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 960, height = 544 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 448 }
Time interval between frame: 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 640, height = 360 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 424, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 600 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 800 }
Time interval between frame: 1/10,
{ discrete: width = 416, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
vid:045e
pid:075d
driver:uvcvideo
checking format: 1196444237
VIDIOC_G_COMP:: ioctl non appropriata per il device
fps is set to 1/30
drawing controls

fps is set to 1/30
Checking video mode 640x480@32bpp : OK
setting new resolution (640 x 480)
checking format: 1448695129
Checking video mode 640x480@32bpp : OK
using device id:2
Audio frame size is 1152 samples for selected codec
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
WARNING: droped frame (-2)
Expression ‘paTimedOut’ failed in ‘src/os/unix/pa_unix_util.c’, line: 387
Expression ‘PaUnixThread_New( &stream->thread, &CallbackThreadFunc, stream, 1., stream->rtSched )’ failed in ‘src/hostapi/alsa/pa_linux_alsa.c’, line: 2958
An error occured while starting the audio API
Error number: -9987
Error message: Wait timed out
Expression ‘pthread_join( self->thread, &pret )’ failed in ‘src/os/unix/pa_unix_util.c’, line: 441
Ucciso[/code]

#8

sembra che ci sia qualche problema sul canale audio.
vuoi provare a usare mencoder ? :

 mencoder tv:// -tv driver=v4l2:device=/dev/video0:noaudio -ovc lavc -o prova.avi

naturalmente la registrazione è muta ( noaudio ), fermi la registazione con [ctrl] + [c]
se è a posto, proverei a modificare o disattivare l’audio della web-cam attraverso pulseaudio
usando un microfono esterno.

#9

allora. innanzitutto scusate il ritardo, ma ho avuto parecchio da fare.
mi sono accorto che nel messaggio che ho scritto in precedenza #7
il programma guvcview era impostato (di default) con la API PORTAUDIO.
ho selezionato la API PULSEAUDIO.
pare funzionare la registrazione ma questo solo perché è impostato come dispositivo di ingresso: “Audio interno Stereo analogico” (e difatti non registra l’audio)
questa webcam ha anche il microfono, quindi quando imposto come dispositivo di ingresso il mcrofono giusto: “LifeCam Cinema Mono analogico”
avvio la registrazione (tutto OK) ma nel momento che vado a fermarla si blocca tutto (devo forzare la chiusura). da terminale succede questo:

[code]$ guvcview
guvcview 1.6.1
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
Cannot connect to server socket err = File o directory non esistente
Cannot connect to server request channel
jack server is not running or cannot be started
video device: /dev/video0
Init. Microsoft® LifeCam Cinema™ (location: usb-0000:00:1d.7-6)
{ pixelformat = ‘YUYV’, description = ‘YUV 4:2:2 (YUYV)’ }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/10, 2/15,
{ discrete: width = 960, height = 544 }
Time interval between frame: 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 448 }
Time interval between frame: 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 640, height = 360 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 424, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 600 }
Time interval between frame: 1/15, 1/10, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 800 }
Time interval between frame: 1/10,
{ pixelformat = ‘MJPG’, description = ‘MJPEG’ }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 960, height = 544 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 448 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 640, height = 360 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 600 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 416, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ pixelformat = ‘RGB3’, description = ‘RGB3’ }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 960, height = 544 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 448 }
Time interval between frame: 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 640, height = 360 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 424, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 600 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 800 }
Time interval between frame: 1/10,
{ discrete: width = 416, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ pixelformat = ‘BGR3’, description = ‘BGR3’ }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 960, height = 544 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 448 }
Time interval between frame: 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 640, height = 360 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 424, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 600 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 800 }
Time interval between frame: 1/10,
{ discrete: width = 416, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ pixelformat = ‘YU12’, description = ‘YU12’ }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 960, height = 544 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 448 }
Time interval between frame: 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 640, height = 360 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 424, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 600 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 800 }
Time interval between frame: 1/10,
{ discrete: width = 416, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ pixelformat = ‘YV12’, description = ‘YV12’ }
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 720 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 960, height = 544 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 448 }
Time interval between frame: 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 640, height = 360 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 424, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 600 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 800 }
Time interval between frame: 1/10,
{ discrete: width = 416, height = 240 }
Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
vid:045e
pid:075d
driver:uvcvideo
checking format: 842093913
fps is set to 1/30
drawing controls

fps is set to 1/30
======= Output Device #1 ]=======
Description: Audio interno Stereo analogico
Name: alsa_output.pci-0000_00_1b.0.analog-stereo
Index: 0
Channels: 2
SampleRate: 44100
Latency: 0 (usec)
Card: 0

======= Output Device #2 ]=======
Description: Bose USB Audio Surround analogico 4.1
Name: alsa_output.usb-Bose_Corporation_Bose_USB_Audio-00-Audio.analog-surround-41
Index: 1
Channels: 5
SampleRate: 48000
Latency: 0 (usec)
Card: 1

======= Input Device #1 ]=======
Description: Monitor of Audio interno Stereo analogico
Name: alsa_output.pci-0000_00_1b.0.analog-stereo.monitor
Index: 0
Channels: 2 (default to: 2)
SampleRate: 44100
Latency: 0 (usec)
Card: 0

======= Input Device #2 ]=======
Description: Audio interno Stereo analogico
Name: alsa_input.pci-0000_00_1b.0.analog-stereo
Index: 1
Channels: 2 (default to: 2)
SampleRate: 44100
Latency: 0 (usec)
Card: 0

======= Input Device #3 ]=======
Description: Monitor of Bose USB Audio Surround analogico 4.1
Name: alsa_output.usb-Bose_Corporation_Bose_USB_Audio-00-Audio.analog-surround-41.monitor
Index: 2
Channels: 5 (default to: 2)
SampleRate: 48000
Latency: 0 (usec)
Card: 1

======= Input Device #4 ]=======
Description: LifeCam Cinema Mono analogico
Name: alsa_input.usb-Microsoft_Microsoft___LifeCam_Cinema_TM_-02-CinemaTM.analog-mono
Index: 3
Channels: 1 (default to: 1)
SampleRate: 44100
Latency: 0 (usec)
Card: 2

Checking video mode 640x480@32bpp : OK
Audio frame size is 1152 samples for selected codec
Pulse audio Thread started
AUDIO: connecting to pulse audio device alsa_input.usb-Microsoft_Microsoft___LifeCam_Cinema_TM_-02-CinemaTM.analog-mono
(channels 1 rate 44100)
AUDIO: pulse read thread joined
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
Could not grab image (select timeout): Risorsa temporaneamente non disponibile
write /home/mario/.guvcviewrc OK
free controls
cleaned allocations - 100%
Closing portaudio …OK
Closing GTK… OK[/code]
si può dire che il problema non sta nemmeno esattamente sulla webcam ma nel microfono integrata ad essa. è corretto?

EDIT:
il comando chiestomi da buon http://forum.fedoraonline.it/profile.php?id=2911:

[code]$ mencoder tv:// -tv driver=v4l2:device=/dev/video0:noaudio -ovc lavc -o prova.avi
MEncoder SVN-r36521-4.8.2 © 2000-2013 MPlayer Team
success: format: 9 data: 0x0 - 0x0
TV file format detected.
Selected driver: v4l2
name: Video 4 Linux 2 input
author: Martin Olschewski [email protected]
comment: first try, more to come :wink:
v4l2: your device driver does not support VIDIOC_G_STD ioctl, VIDIOC_G_PARM was used instead.
Selected device: Microsoft® LifeCam Cinema™
Capabilities: video capture streaming
supported norms:
inputs: 0 = Camera 1;
Current input: 0
Current format: YUYV
tv.c: norm_from_string(pal): Bogus norm parameter, setting default.
v4l2: ioctl enum norm failed: Inappropriate ioctl for device
Error: Cannot set norm!
Selected input hasn’t got a tuner!
v4l2: ioctl set mute failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
[V] filefmt:9 fourcc:0x32595559 size:640x480 fps:30.000 ftime:=0.0333
libavcodec version 55.39.101 (external)
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1

Opening video decoder: [raw] RAW Uncompressed Video
Could not find matching colorspace - retrying with -vf scale…
Opening video filter: [scale]
Movie-Aspect is undefined - no prescaling applied.
[swscaler @ 0x7fac13382c60]using unscaled yuyv422 -> yuv420p special converter
videocodec: libavcodec (640x480 fourcc=34504d46 [FMP4])
Selected video codec: [rawyuy2] vfm: raw (RAW YUY2)

Forcing audio preload to 0, max pts correction to 0.

Invalid frame duration value (0.000/-0.109 => -0.109). Defaulting to 0.033 sec.
Writing header…
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Writing header…
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Pos: 0.1s 3f ( 0%) 0.00fps Trem: 0min 0mb A-V:0.000 [0:0]

7 duplicate frame(s)!
Pos: 0.1s 4f ( 0%) 0.00fps Trem: 0min 0mb A-V:0.000 [0:0]

Invalid frame duration value (0.239/0.132 => -0.108). Defaulting to 0.293 sec.

8 duplicate frame(s)!
Pos: 0.7s 6f ( 0%) 0.00fps Trem: 0min 0mb A-V:0.000 [0:0]

7 duplicate frame(s)!
Pos: 0.7s 7f ( 0%) 0.00fps Trem: 0min 0mb A-V:0.000 [0:0]

Invalid frame duration value (0.444/0.340 => -0.104). Defaulting to 0.273 sec.

7 duplicate frame(s)!
Pos: 1.3s 11f ( 0%) 10.56fps Trem: 0min 0mb A-V:0.000 [615:0]

10 duplicate frame(s)!
Pos: 1.4s 12f ( 0%) 10.84fps Trem: 0min 0mb A-V:0.000 [615:0]

Invalid frame duration value (0.783/0.678 => -0.105). Defaulting to 0.368 sec.

10 duplicate frame(s)!
Pos: 1.7s 13f ( 0%) 11.09fps Trem: 0min 0mb A-V:0.000 [507:0]

6 duplicate frame(s)!
Pos: 2.1s 14f ( 0%) 11.23fps Trem: 0min 0mb A-V:0.000 [437:0]

Invalid frame duration value (0.907/0.812 => -0.095). Defaulting to 0.229 sec.

5 duplicate frame(s)!
Pos: 2.3s 15f ( 0%) 11.40fps Trem: 0min 0mb A-V:0.000 [442:0]

6 duplicate frame(s)!
Pos: 2.5s 16f ( 0%) 11.59fps Trem: 0min 0mb A-V:0.000 [420:0]

Invalid frame duration value (1.043/0.939 => -0.104). Defaulting to 0.231 sec.

6 duplicate frame(s)!
Pos: 3.1s 20f ( 0%) 12.15fps Trem: 0min 0mb A-V:0.000 [409:0]

10 duplicate frame(s)!
Pos: 3.1s 21f ( 0%) 12.27fps Trem: 0min 0mb A-V:0.000 [417:0]

Invalid frame duration value (1.395/1.287 => -0.109). Defaulting to 0.377 sec.

10 duplicate frame(s)!
Pos: 3.5s 22f ( 0%) 12.37fps Trem: 0min 0mb A-V:0.000 [386:0]

6 duplicate frame(s)!
Pos: 3.8s 23f ( 0%) 12.48fps Trem: 0min 0mb A-V:0.000 [358:0]

Invalid frame duration value (1.504/1.408 => -0.096). Defaulting to 0.218 sec.

5 duplicate frame(s)!
Pos: 4.1s 24f ( 0%) 12.58fps Trem: 0min 0mb A-V:0.000 [346:0]

7 duplicate frame(s)!
Pos: 4.3s 25f ( 0%) 12.66fps Trem: 0min 0mb A-V:0.000 [336:0]

Invalid frame duration value (1.649/1.540 => -0.108). Defaulting to 0.240 sec.

6 duplicate frame(s)!
Pos: 4.5s 26f ( 0%) 12.70fps Trem: 0min 0mb A-V:0.000 [322:0]

6 duplicate frame(s)!
Pos: 4.8s 27f ( 0%) 12.77fps Trem: 0min 0mb A-V:0.000 [310:0]

Invalid frame duration value (1.792/1.682 => -0.111). Defaulting to 0.252 sec.

7 duplicate frame(s)!
Pos: 5.0s 28f ( 0%) 12.86fps Trem: 0min 0mb A-V:0.000 [305:0]

5 duplicate frame(s)!
Pos: 5.3s 29f ( 0%) 12.92fps Trem: 0min 0mb A-V:0.000 [297:0]

Invalid frame duration value (1.901/1.809 => -0.092). Defaulting to 0.220 sec.

6 duplicate frame(s)!
Pos: 5.5s 30f ( 0%) 12.99fps Trem: 0min 0mb A-V:0.000 [293:0]

6 duplicate frame(s)!
Pos: 5.7s 31f ( 0%) 13.06fps Trem: 0min 0mb A-V:0.000 [287:0]

Invalid frame duration value (2.047/1.939 => -0.107). Defaulting to 0.238 sec.

6 duplicate frame(s)!
Pos: 5.9s 32f ( 0%) 13.06fps Trem: 0min 0mb A-V:0.000 [281:0]

7 duplicate frame(s)!
Pos: 6.2s 33f ( 0%) 13.17fps Trem: 0min 0mb A-V:0.000 [277:0]

Invalid frame duration value (2.193/2.086 => -0.107). Defaulting to 0.254 sec.

7 duplicate frame(s)!
Pos: 6.4s 34f ( 0%) 13.17fps Trem: 0min 0mb A-V:0.000 [269:0]

5 duplicate frame(s)!
Pos: 6.7s 35f ( 0%) 13.23fps Trem: 0min 0mb A-V:0.000 [265:0]

Invalid frame duration value (2.295/2.205 => -0.090). Defaulting to 0.209 sec.

5 duplicate frame(s)!
Pos: 6.9s 36f ( 0%) 13.27fps Trem: 0min 0mb A-V:0.000 [262:0]

6 duplicate frame(s)!
Pos: 7.1s 37f ( 0%) 13.32fps Trem: 0min 0mb A-V:0.000 [259:0]

1 duplicate frame(s)!
Pos: 7.3s 38f ( 0%) 13.37fps Trem: 0min 0mb A-V:0.000 [255:0]

Invalid frame duration value (2.493/2.272 => -0.221). Defaulting to 0.052 sec.
Pos: 7.4s 39f ( 0%) 13.41fps Trem: 0min 0mb A-V:0.000 [259:0]

11 duplicate frame(s)!
Pos: 7.8s 41f ( 0%) 13.44fps Trem: 0min 0mb A-V:0.000 [257:0]

2 duplicate frame(s)!
Pos: 7.9s 42f ( 0%) 13.52fps Trem: 0min 0mb A-V:0.000 [262:0]

Invalid frame duration value (2.799/2.688 => -0.111). Defaulting to 0.091 sec.

2 duplicate frame(s)!
Pos: 8.1s 44f ( 0%) 13.55fps Trem: 0min 0mb A-V:0.000 [265:0]

7 duplicate frame(s)!
Pos: 8.1s 45f ( 0%) 13.58fps Trem: 0min 0mb A-V:0.000 [269:0]

Invalid frame duration value (2.999/2.889 => -0.110). Defaulting to 0.289 sec.

8 duplicate frame(s)!
Pos: 8.7s 49f ( 0%) 13.71fps Trem: 0min 0mb A-V:0.000 [270:0]

8 duplicate frame(s)!
Pos: 8.8s 50f ( 0%) 13.73fps Trem: 0min 0mb A-V:0.000 [275:0]

Invalid frame duration value (3.311/3.211 => -0.100). Defaulting to 0.341 sec.

10 duplicate frame(s)!
Pos: 9.4s 52f ( 0%) 13.79fps Trem: 0min 0mb A-V:0.000 [265:0]

7 duplicate frame(s)!
Pos: 9.5s 53f ( 0%) 13.78fps Trem: 0min 0mb A-V:0.000 [269:0]

Invalid frame duration value (3.505/3.414 => -0.092). Defaulting to 0.271 sec.

7 duplicate frame(s)!
Pos: 10.0s 55f ( 0%) 13.82fps Trem: 0min 0mb A-V:0.000 [262:0]

6 duplicate frame(s)!
Pos: 10.0s 56f ( 0%) 13.84fps Trem: 0min 0mb A-V:0.000 [267:0]

Invalid frame duration value (3.707/3.613 => -0.094). Defaulting to 0.275 sec.

8 duplicate frame(s)!
Pos: 10.6s 58f ( 0%) 13.89fps Trem: 0min 0mb A-V:0.000 [263:0]

7 duplicate frame(s)!
Pos: 10.6s 59f ( 0%) 13.91fps Trem: 0min 0mb A-V:0.000 [266:0]

Invalid frame duration value (3.911/3.817 => -0.094). Defaulting to 0.276 sec.

7 duplicate frame(s)!
Pos: 11.1s 61f ( 0%) 13.95fps Trem: 0min 0mb A-V:0.000 [263:0]

7 duplicate frame(s)!
Pos: 11.2s 62f ( 0%) 13.94fps Trem: 0min 0mb A-V:0.000 [268:0]

2 duplicate frame(s)!
Pos: 11.4s 63f ( 0%) 13.98fps Trem: 0min 0mb A-V:0.000 [265:0]

Invalid frame duration value (4.203/4.093 => -0.110). Defaulting to 0.095 sec.

1 duplicate frame(s)!
Pos: 11.6s 65f ( 0%) 13.99fps Trem: 0min 0mb A-V:0.000 [269:0]

7 duplicate frame(s)!
Pos: 11.6s 66f ( 0%) 14.00fps Trem: 0min 0mb A-V:0.000 [272:0]

1 duplicate frame(s)!
Pos: 11.9s 67f ( 0%) 14.02fps Trem: 0min 0mb A-V:0.000 [270:0]

1 duplicate frame(s)!
Pos: 12.0s 68f ( 0%) 14.04fps Trem: 0min 0mb A-V:0.000 [272:0]

2 duplicate frame(s)!
Pos: 12.0s 69f ( 0%) 14.05fps Trem: 0min 0mb A-V:0.000 [274:0]

Invalid frame duration value (4.598/4.490 => -0.108). Defaulting to 0.090 sec.

1 duplicate frame(s)!
Pos: 12.1s 70f ( 0%) 14.06fps Trem: 0min 0mb A-V:0.000 [275:0]

6 duplicate frame(s)!
Pos: 12.2s 71f ( 0%) 14.08fps Trem: 0min 0mb A-V:0.000 [276:0]

2 duplicate frame(s)!
^Cs: 12.5s 73f ( 0%) 14.11fps Trem: 0min 0mb A-V:0.000 [275:0]

1 duplicate frame(s)!
Pos: 12.6s 74f ( 0%) 14.11fps Trem: 0min 0mb A-V:0.000 [279:0]

Flushing video frames.
Writing index…
Writing header…
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.

Video stream: 278.543 kbit/s (34817 B/s) size: 438705 bytes 12.600 secs 74 frames
v4l2: ioctl set mute failed: Invalid argument
v4l2: 76 frames successfully processed, 75 frames dropped.
[/code]
RI-EDIT:
mi scordavo di menzionare che il video viene registrato correttamente, ma ovviamente senza audio

#10

ho trovato in un cassetto un vecchissimo (e pessimo) microfono dimenticato nel tempo. la qualità è davvero pessima, ma ho voluto lo stesso fare una prova.
l’ho inserito ne jack mi sono assicurato dalle impostazioni audio di sistema che venisse riconosciuto e impostato di default.
poi ho aperto Cheese e provato a fare una registrazione. come per magia tutto funziona.
quindi abbiamo appurato che il problema è proprio il microfono integrato della webcam.
c’è qualche remota possibilità che torni a funzionare? c’è qualche impostazione dove poter interagire per cercare di capire il problema e risolverlo?

EDIT:
aggiungo altri parametri

$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC9227 Analog [STAC9227 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 1: STAC9227 Digital [STAC9227 Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: Audio [Bose USB Audio], device 0: USB Audio [USB Audio] Subdevices: 0/1 Subdevice #0: subdevice #0
e

$ aplay -L null Discard all samples (playback) or generate zero samples (capture) pulse PulseAudio Sound Server default Default ALSA Output (currently PulseAudio Sound Server) sysdefault:CARD=Intel HDA Intel, STAC9227 Analog Default Audio Device front:CARD=Intel,DEV=0 HDA Intel, STAC9227 Analog Front speakers surround40:CARD=Intel,DEV=0 HDA Intel, STAC9227 Analog 4.0 Surround output to Front and Rear speakers surround41:CARD=Intel,DEV=0 HDA Intel, STAC9227 Analog 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=Intel,DEV=0 HDA Intel, STAC9227 Analog 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=Intel,DEV=0 HDA Intel, STAC9227 Analog 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=Intel,DEV=0 HDA Intel, STAC9227 Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers iec958:CARD=Intel,DEV=0 HDA Intel, STAC9227 Digital IEC958 (S/PDIF) Digital Audio Output sysdefault:CARD=Audio Bose USB Audio, USB Audio Default Audio Device front:CARD=Audio,DEV=0 Bose USB Audio, USB Audio Front speakers surround40:CARD=Audio,DEV=0 Bose USB Audio, USB Audio 4.0 Surround output to Front and Rear speakers surround41:CARD=Audio,DEV=0 Bose USB Audio, USB Audio 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=Audio,DEV=0 Bose USB Audio, USB Audio 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=Audio,DEV=0 Bose USB Audio, USB Audio 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=Audio,DEV=0 Bose USB Audio, USB Audio 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers iec958:CARD=Audio,DEV=0 Bose USB Audio, USB Audio IEC958 (S/PDIF) Digital Audio Output

#11

Il comportamento da te riportato sembra proprio quello descritto nella nota:

Inoltre, a proposito del quirk (che dovresti applicare) la nota aggiunge:

A questo punto io provarei a variare (sempre con guvcview) il formato dell’uscita video/audio privilegiando i formati non compressi e riducendo al minimo possibile le frequenze di frame-rate e campionamento (anziché lasciare le opzioni di default).

#12

da guvcview ho impostato nel modo seguente:

Video e file
Dispositivo:
Microsoft® LifeCam Cinema(TM) *

Frame Rate:
30/1 fps
20/1 fps
15/1 fps
10/1 fps *
15/2 fps

Risoluzione:
640x480
1280x720
960x540
800x448
640x360
424x240
352x288
320x240
800x600
176x144
160x120 *
1280x800
416x240

Uscita della webcam:
YUYV *
MJPG
RGB3
BGR3
YU12
YV12

Formato dell'immagine:
YPG *
BMP
PNG
RAW

Codec video:
MJPG - compresso
YUY2 - YUV non compresso *
RGB -BMP non compresso
MPEG video 1
FLV1 - flash video 1
WMV1 - win. med. video 7
MPG2 - formato MPG2
MS MP4 V3
MPEG4-ASP
MPEG4-AVC (H264)

Formato video:
AVI - avi format *
MKV - Matroska format

---- Filtri video ----
nessuno

Audio
API dell'audio:
PULSEAUDIO *
PORTAUDIO

Dispositivo di ingresso:
LifeCam Cinema Mono analogico *
Audio interno Stereo analogico

Frequenza di campionamento:
Impostazione predefinita del dispositivo
8000 *
9600
11025
12000
16000
22050
24000
32000
44100
48000
88200
96000

Canali:
Impostazione predefinita del dispositivo
1 - mono *
2 - stereo

Formato audio:
PCM - uncompressed (16 bit) *
MPEG2 - (lavc)
MP3 - (lavc)
Dolby AC3 - (lavc)
ACC Low - (Faac)
---- Effetti audio ----
nessuno

il quirk come gia mi è stato suggerito da Tempus nel post #5 è stato effettuato.
con le sopra descritte impostazioni, nonostante non crasha, i video vengono registrati senza audio.
ho un notebook con una porta USB 3.0 e Fedora 19 installata. provo a inserire la webcam in questione sulla suddetta porta e verificarne il comportamento.
invece la macchina della quale non vuol saperne di funzionare correttamente è un preassemblato:
DELL XPS 420 dove gira una Fedora 20
ha 10 porte USB 2.0:
2 frontali, 6 posteriori e 2 interne (secondo quello che dicono http://www.dell.com/content/products/productdetails.aspx/xpsdt_420 specifiche)
Ho impostato correttamente secondo voi?
grazie dell’attenzione

#13

Le impostazioni sembrano ragionevoli, rispetto alle ipotesi fatte. Provo a riassumere la vicenda: hai 2 pc, un portatile con usb3 e un fisso con usb2. Col quirk applicato sul portatile sei riuscito a ottenere un video muto con guvcview (e mi pare anche con cheese), sul fisso niente perché va in crash. E’ chiaro che il problema è il microfono incorporato nella webcam, che a quando pare non vuol funzionare con pulseaudio (o meglio, in contemporanea con l’acquisizione video).
A questo punto (ma sto arrivando alla frutta) potresti provare a modificare le impostazioni di input dell’audio con l’utility pavucontrol: per http://forums.linuxmint.com/viewtopic.php?f=47&t=112188 sembra aver funzionato con questo dispositivo.

#14

corretto

no;
il quirk è stato applicato sul fisso. come anche tutte le prove fatte fin’ora. appena applicato, ha smesso di crashare anche se registra senza audio (parliamo sempre del fisso)

sono assolutamente d’accordo con te. sospetto che la banda usb gli vada troppo ristretta per far funzionare tutt’è 2 (audio + video) ecco perché vorrei provare la webcam sul portatile, quest’ultima ha una presa USB 3.0. (a differenza del fisso un po’ vecchiotto che ha solo prese USB 2.0) ovviamente non me ne faccio nulla della webcam sul portatile visto che ne ha già una integrata (e che funziona correttamente) era solo per cercare di circoscrivere il problema.

Causa lavoro non ho avuto modo di fare quel esperimento, che rimanderò a questo week-end.

Grazie della dritta, farò anche quest’ultima prova. in verità anche io sto perdendo le speranze :frowning:

#15

resuscito questo post solo per dire che oggi, così… giusto perché non avevo nulla da fare, senza che io abbia fatto nulla, ma proprio nulla di particolare in tutto questo periodo, se non che aggiornare settimanalmente il sistema
inserendo il cavetto usb della webcam in una porta, tutto è ripreso a funzionare correttamente. mi chiedo solo che diavolo è successo e cosa c’era che non andava… mah! mistero!