Bug 307029 – CPU Fan not working on kernel-2.6.31

• Status: RESOLVED NEEDINFO
• Product: Gentoo Linux

[Description iceonfire29 2010-02-27 03:35:14 UTC]

Hi

I installed kernel-2.6.31-r10 in my system and after booting into it i noticed that my cpu fan never worked since that wich made my cpu temperature raise. I had the same problem also with revisions 6 ans 8 of 2.6.31, only kernel-2.6.30-r8 and older versions can make my cpu fan run.

[Comment 1 iceonfire29 2010-02-27 03:37:42 UTC]

Created attachment 221385 [details]
dmesg output

[Comment 2 iceonfire29 2010-02-27 03:39:46 UTC]

Created attachment 221387 [details]
Kernel config file

[Comment 3 Markos Chandras (RETIRED) 2010-03-01 07:19:30 UTC]

Did you try the latest ~gentoo-sources?

[Comment 4 Markos Chandras (RETIRED) 2010-03-01 07:26:41 UTC]

Also did you use lm_sensors? Which version?

[Comment 5 George Kadianakis (RETIRED) 2010-03-01 11:52:28 UTC]

Ehm, are you sure that your CPU fan is the one that's not working?
I really don't think that a modern PC can boot without a CPU fan functioning.

Maybe you are confusing it with the fan in the back of the tower?
What CPU temp are you getting if you check in the BIOS or with software sensors of some kind?

[Comment 6 iceonfire29 2010-03-03 10:28:59 UTC]

(In reply to comment #5)
By the way, sorry I forget to mention that I am using gentoo on a laptop acer aspire (Inte Celeron Mobile)

[Comment 7 iceonfire29 2010-03-03 10:33:55 UTC]

(In reply to comment #4)
> Also did you use lm_sensors? Which version?

I have lm_sensors-2.10,7 with sensord USE flag enabled 

[Comment 8 Markos Chandras (RETIRED) 2010-03-03 13:52:14 UTC]

Your kernel recognizes the cooling device aka the CPU fan

acpi device:3c: registered as cooling_device0

please provide us with a sensors output

I suspect two things

1) hardware issue
2) wrong temp values on sensors, hence cpu fan doesn't need to operate

[Comment 9 iceonfire29 2010-03-04 09:59:26 UTC]

(In reply to comment #8)

Sensors output:

coretemp-isa-0000
Adapter: ISA adapter
Core 0:      +49 C  (high =  +100 C)                   

[Comment 10 George Kadianakis (RETIRED) 2010-03-06 00:48:02 UTC]

Hey, could you try upgrading your BIOS to the latest official version?

[Comment 11 Mike Pagano 2010-04-08 23:28:48 UTC]

Please let us know if you can perform the action requested in comment #10.