Hello I own a Thinkpad Edge E420 1141-GJG laptop.
The fan runs at a constant speed sometimes overheating the laptop.
I want the fan speed control to be done automatically so I followed the the steps presented here to no avail.
http://www.thinkwiki.org/wiki/How_to_co … #For_Linux
cat /proc/acpi/ibm/fan status: disabled speed: 0 level: 0
Last edited by sbfreak (2013-01-24 22:30:54)
How about this:
Edit /etc/sensors.d/sensors.conf and look up your exact chipset. A few chipset names are similar, so make sure the one you are editing is yours. Add the line 'set fanX_div 4' near the start of your chipset config, replacing X with the number of CPU fans your system has.
How can one find the exact chipset name? The overall information spilled out by dmidecode is staggering.
Accoding to http://en.gentoo-wiki.com/wiki/Lm_sensors#Configuration ,the chipset name should be in the sensors output.
$ sensors acpitz-virtual-0 Adapter: Virtual device temp1: +37.0 C (crit = +120.0 C) thinkpad-isa-0000 Adapter: ISA adapter fan1: 0 RPM coretemp-isa-0000 Adapter: ISA adapter Physical id 0: +59.0 C (high = +86.0 C, crit = +100.0 C) Core 0: +54.0 C (high = +86.0 C, crit = +100.0 C) Core 1: +58.0 C (high = +86.0 C, crit = +100.0 C)
chip "lm78-*" "lm79-*" "lm80-*" "lm96080-*" set fan4_div 32 label temp1 "M/B Temp"
Last edited by sbfreak (2013-01-24 14:49:02)
I solved the problem using thinkfan.
I'm E420 too.
how did you set your sensors in thinkfan.conf, I don't have thermal in /proc/acpi/ibm
It should solve the problem in a "clean way"/
https://bbs.archlinux.org/viewtopic.php … 5#p1030495
Thank you , after a few days' test, I think I almost solve the problem
the key point is that I need to add thinkfan into daemon.
and there is another question, even in 7 level, the fan doesn't work in fastest speed.
so , when i do some tough task, the temperature will rise over 60 centigrade and even 70 ,
but the fan doesn't work as fast as in my windows
so I worry a lot sinsce summer is comming
Thank you , ...comming
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Honestly, I think that it is best to let the bios handle the fan speed instead of userspace.
If the laptop is overheating when the fan is going full speed, you have problems beyond just the speed/noise of the fan. Having a fully running fan shouldn't cause your machine to overheat, and in fact should do the opposite and cool your system down.