I know that this topic has been discussed several times, but I can't find a solution that works for me, maybe because it's a very hardware-dependent problem.
So, as many others, the fan of my laptop is running all the time (not full speed, but always running), despite the cpu is not that warm at all.
Sensors, for instance, says:
acpitz-virtual-0 Adapter: Virtual device temp1: +0.0°C (crit = +127.0°C) temp2: +35.0°C (crit = +127.0°C) temp3: +39.0°C (crit = +128.0°C) temp4: +34.0°C (crit = +127.0°C) temp5: +0.0°C (crit = +115.0°C) temp6: +23.4°C (crit = +128.0°C) temp7: +0.0°C (crit = +128.0°C) temp8: +39.0°C (crit = +128.0°C) temp9: +43.0°C (crit = +128.0°C) temp10: +59.0°C (crit = +128.0°C) coretemp-isa-0000 Adapter: ISA adapter Core 0: +37.0°C (high = +95.0°C, crit = +105.0°C) Core 2: +40.0°C (high = +95.0°C, crit = +105.0°C)
I checked and I do have cpufrequtils running, and I tried installing fancontrol, but can't run it as pwmconfig can't find the right modules. My kernel is the 3.2.0-3-amd64. I tried to investigate a bit, but could not sort out which modules are appropriate for my i5 540. No graphics card in the laptop, so it can't be a gpu problem.
Any idea? Should I try downgrading to some 2.6 kernel? Or could it be a bios issue? This last option is the worst, as I don't have windows on the machine, so I'm not sure how I could upgrade the bios without having to mess up the installation.
Last edited by sambarluc (2012-10-11 09:15:08)
You need to go into the firmware (BIOS has been replaced by UEFI in your model). You hit Escape when the laptop is booting, and then you need to find the option "Fan always on on AC", and untick it.
I forgot to say it, I did the BIOS trick already, with no change (but the laptop is beautifully quiet inside the BIOS).
pwmconfig, instead, says:
# pwmconfig revision 5857 (2010-08-22) This program will search your sensors for pulse width modulation (pwm) controls, and test each one to see if it controls a fan on your motherboard. Note that many motherboards do not have pwm circuitry installed, even if your sensor chip supports pwm. We will attempt to briefly stop each fan using the pwm controls. The program will attempt to restore each fan to full speed after testing. However, it is ** very important ** that you physically verify that the fans have been to full speed after the program has completed. /usr/sbin/pwmconfig: There are no pwm-capable sensor modules installed
I added the module coretemp as suggested by sensors-detected, without any effect.
sensors-detect does its tests and suggests to add coretemp module. Module added, no effect.
lsmod | grep coretemp
coretemp 12898 0
which I guess means it's loaded, right?
I see, thanks for the help, though, I'll wait for some more input, and then maybe fill a bug report.
There's a thinkpad-fan (or something similar) package floating about debian repositories as well somewhere. I remember that it is a general tool for other machines too.
Edit: Found it, thinkfan it's called, and in the repositories.
Edit: This page might be useful too- http://www.thinkwiki.org/wiki/How_to_control_fan_speed
Last edited by dura (2012-10-11 21:25:08)
Hi, I tried thinkfan too, but without much luck. I guess it's taylor-made for thinkpads, as the name says.