Ciao a tutti
come viene operato il controlo del fan in fedora e come posso sapere se è tutto a posto?
Nel mio caso mi sembra che:
1)la ventola giri sempre alla stessa velocità -attorno ai 4000 rpm.
2) Le variazioni siano dell’ordine delle decine di RPM e che siano casuali.
3) Ho trovato il processore a temperature della CPU alte >70°C e nessun cambiamento di ventilazione al seguito.
4) Un paio di volte ho notato la ventola sensibilmente piu’ veloce e rumorosa, sebbene il sensore indicasse sempre la stessa velocità e la temperatura fosse molto bassa (40°C)
5) In passato su altre distro come Ubuntu, le cose erano molto simili.
La macchina è la solita lenovo thinkpad t410S (ex IBM).
Grazie
Francesco
[fdondero@localhost ~]$ sudo sensors-detect
[sudo] password for fdondero:
# sensors-detect revision 5818 (2010-01-18 17:22:07 +0100)
# System: LENOVO 29123AG (laptop)
This program will help you determine which kernel modules you need
to load to use lm_sensors most effectively. It is generally safe
and recommended to accept the default answers to all questions,
unless you know what you're doing.
Some south bridges, CPUs or memory controllers contain embedded sensors.
Do you want to scan for them? This is totally safe. (YES/no): y
Silicon Integrated Systems SIS5595... No
VIA VT82C686 Integrated Sensors... No
VIA VT8231 Integrated Sensors... No
AMD K8 thermal sensors... No
AMD Family 10h thermal sensors... No
AMD Family 11h thermal sensors... No
Intel Core family thermal sensor... No
Intel Atom thermal sensor... No
Intel AMB FB-DIMM thermal sensor... No
VIA C7 thermal sensor... No
VIA Nano thermal sensor... No
Some Super I/O chips contain embedded sensors. We have to write to
standard I/O ports to probe them. This is usually safe.
Do you want to scan for Super I/O sensors? (YES/no): y
Probing for Super-I/O at 0x2e/0x2f
Trying family `National Semiconductor'... No
Trying family `SMSC'... No
Trying family `VIA/Winbond/Nuvoton/Fintek'... No
Trying family `ITE'... No
Probing for Super-I/O at 0x4e/0x4f
Trying family `National Semiconductor'... No
Trying family `SMSC'... No
Trying family `VIA/Winbond/Nuvoton/Fintek'... No
Trying family `ITE'... No
Some hardware monitoring chips are accessible through the ISA I/O ports.
We have to write to arbitrary I/O ports to probe them. This is usually
safe though. Yes, you do have ISA I/O ports even if you do not have any
ISA slots! Do you want to scan the ISA I/O ports? (YES/no): y
Probing for `National Semiconductor LM78' at 0x290... No
Probing for `National Semiconductor LM79' at 0x290... No
Probing for `Winbond W83781D' at 0x290... No
Probing for `Winbond W83782D' at 0x290... No
Lastly, we can probe the I2C/SMBus adapters for connected hardware
monitoring devices. This is the most risky part, and while it works
reasonably well on most systems, it has been reported to cause trouble
on some systems.
Do you want to probe the I2C/SMBus adapters now? (YES/no): y
Found unknown SMBus adapter 8086:3b30 at 0000:00:1f.3.
Sorry, no supported PCI bus adapters found.
Next adapter: intel drm CRTDDC_A (i2c-0)
Do you want to scan it? (YES/no/selectively): y
Next adapter: intel drm LVDSDDC_C (i2c-1)
Do you want to scan it? (YES/no/selectively): y
Client found at address 0x50
Probing for `Analog Devices ADM1033'... No
Probing for `Analog Devices ADM1034'... No
Probing for `SPD EEPROM'... yNo
Probing for `EDID EEPROM'... Yes
(confidence 8, not a hardware monitoring chip)
Next adapter: intel drm HDMIB (i2c-2)
Do you want to scan it? (YES/no/selectively):
Next adapter: DPDDC-B (i2c-3)
Do you want to scan it? (YES/no/selectively):
Next adapter: intel drm HDMIC (i2c-4)
Do you want to scan it? (YES/no/selectively): y
Next adapter: intel drm HDMID (i2c-5)
Do you want to scan it? (YES/no/selectively): y
Next adapter: DPDDC-C (i2c-6)
Do you want to scan it? (YES/no/selectively): y
Next adapter: DPDDC-D (i2c-7)
Do you want to scan it? (YES/no/selectively): y
Next adapter: SMBus I801 adapter at 1880 (i2c-8)
Do you want to scan it? (YES/no/selectively): y
Client found at address 0x50
Probing for `Analog Devices ADM1033'... No
Probing for `Analog Devices ADM1034'... No
Probing for `SPD EEPROM'... No
Probing for `EDID EEPROM'... No
Client found at address 0x51
Probing for `Analog Devices ADM1033'... No
Probing for `Analog Devices ADM1034'... No
Probing for `SPD EEPROM'... No
Client found at address 0x5c
Probing for `Analog Devices ADT7462'... No
Sorry, no sensors were detected.
This is relatively common on laptops, where thermal management is
handled by ACPI rather than the OS.
[fdondero@localhost ~]$
Mi autocito e propongo di chiudere il post. Il controllo insoddisfacente del fan sembra affliggere questo modello di Thinkpad, verificandosi gli stessi problemi da me riscontrati in differenti sistemi operativi, compreso quelli della casa di Redmond (win). Ci sono parecchi post sul forum della thinkpad e la gente appare alquanto scocciata visto che questo pezzo di hardware costa piu’ di 2000 euro e tra le altre cose ha 1 solo sensore della temperatura sulla cpu.
Personalmente ho risolto -almeno un poco- installando un programmino minimalista che permette di modificare la velocità della ventola secondo alcuni intervalli di temperatura user-defined: thinkfan-0.7.1, disponibile qui:http://sourceforge.net/projects/thinkfan/
l’installazione sul thinkpad è molto semplice, basta estrarre l’archivio, copiarlo da qualche parte (io lho messo in /opt) e dare un make da superuser. Poi se volete potete copiare questo script in /etc/rc.local
