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03-24-2006, 03:28 PM
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#1
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Member
Registered: Oct 2004
Location: Tartu, Århus,Nürnberg, Europe
Distribution: Debian, Ubuntu, Puppy
Posts: 619
Rep:
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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
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03-24-2006, 05:39 PM
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#2
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Member
Registered: Apr 2004
Location: new york
Distribution: win2k,ubuntu,sw13,arch,centos5.3
Posts: 815
Rep:
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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.
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03-25-2006, 03:44 PM
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#3
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Senior Member
Registered: Dec 2004
Location: In my house.
Distribution: Ubuntu 10.10 64bit, Slackware 13.1 64-bit
Posts: 2,649
Rep:
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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
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07-08-2007, 04:38 AM
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#4
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Member
Registered: Oct 2004
Location: Tartu, Århus,Nürnberg, Europe
Distribution: Debian, Ubuntu, Puppy
Posts: 619
Original Poster
Rep:
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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.
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01-26-2009, 11:22 AM
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#5
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Member
Registered: Oct 2004
Location: Tartu, Århus,Nürnberg, Europe
Distribution: Debian, Ubuntu, Puppy
Posts: 619
Original Poster
Rep:
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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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