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Linux - Laptop and Netbook Having a problem installing or configuring Linux on your laptop? Need help running Linux on your netbook? This forum is for you. This forum is for any topics relating to Linux and either traditional laptops or netbooks (such as the Asus EEE PC, Everex CloudBook or MSI Wind).

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Old 03-24-2006, 03:28 PM   #1
otoomet
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Registered: Oct 2004
Location: Tartu, Århus,Nürnberg, Europe
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fan constantly running/how to control it?


After an upgrade of my sarge, the fan of my laptop is almoust always on. I have been trying to find the reason but so long without any success. The computer is as responsive as before. I am a bit suspectful about load avg being around 0.3 although cpu usage is only ~3%. Have not found which processes cause the high avg.

Can anyone give me any hint, which programs/modules control the fan? I have a custom 2.6.7 kernel (which was not upgraded), it is ASUSM2400 centrino laptop.

I have libsensors installed but not lm-sensors.

Any ideas?
Ott
 
Old 03-24-2006, 05:39 PM   #2
lestoil
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If you have a custom kernel, have you considered getting newer kernel or compiling 2.6.15+ kernel with better cpu throttling and newer ACPI? linux-on-laptops has several Sarge and Etch lappy install notes that include kernel config files for models with your hardware. It's just a matter of finding those notes and using irc for more current help/info. Look into acpid,powernowd,cpufreqd,klaptodaemon.Good luck

Last edited by lestoil; 03-24-2006 at 05:47 PM.
 
Old 03-25-2006, 03:44 PM   #3
cwwilson721
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Registered: Dec 2004
Location: In my house.
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I have a script I use in Slackware, and run it in my rc.local file:
Code:
# Set the trip point temperatures (in Celsius)
echo -n "100:0:90:80:45" > /proc/acpi/thermal_zone/THRM/trip_points

# Activate the temperature control system of the kernel
echo -n "15" > /proc/acpi/thermal_zone/THRM/polling_frequency

# Turn off the fan
echo -n "3" > /proc/acpi/fan/FAN0/state
Not sure if it will help you w/Sarge, but it stops my fan, and runs it when proc temp gets above 45C
 
Old 07-08-2007, 04:38 AM   #4
otoomet
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Well, a newer kernel helps. Currently I am running 2.6.18 and using governor mode "ondemand". The computer is rather quiet now.

Thanks for your replies.
 
Old 01-26-2009, 11:22 AM   #5
otoomet
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... and clean your computer ;-)

Open it, remove the fan, and look what dust is down there. It cannot be removed by simply blowing/vacuum cleaning from outside.
 
  


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