Controlling fan speed according to temperature in Kubuntu 7.04
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[Solved] Controlling fan speed according to temperature in Kubuntu 7.04
Hi, I'm running Kubuntu 7.04 (and Puppy 2.15) on my Asus M5N (aka M5200N) notebook, alongside Windows XP. From the very first the fan on this machine was very noisy, I put up with it until today when I finally got Speedfan configured in XP - thanks to the following posting: http://jakobskipper.dk/html/fan_fix.html
Fan control. Load the i2c-i801 and lm85 kernel modules, and set new "trip points" to make the fan less aggressive. Here's how to make the fan come on at 55°C and go off at 50°C:
echo 50000 > temp1_auto_temp_off
echo 55000 > temp1_auto_temp_min
Note that on kernels 2.6.17 and later, fan control only works if ACPI sleep states are disabled. Details here. Offending patch here. This patch wasn't necessary for the M5N. If you revert it, fan control and sleep states should still both work. I'll be interested to hear your experiences if you try patching.
The trouble is, I don't have a "i2c-0/0-002e" directory, and so am stuck. I believe I have the modules mentioned. Can anyone explain to this newbie what to do? Thanks.
in a console as root, type 'lsmod' and see if those modules mentioned appear in the list. Chances are, they won't, but if they do, you need to 'insert' them into the kernel with the 'modprobe' command. To locate them if they exist anywhere, try:
1 - type 'modprobe -l'
2 - search through /lib/modules/<your-kernel-name>/
3 - type 'cat /lib/modules/<your-kernel-name>/'
you should be able to locate/identify the modules you need, **IF** they are compiled as modules for your kernel. If they aren't around, and they aren't built-into your kernel, you will need to either build the modules, or recompile the kernel with the needed support.
Let us know if you find them or not. If not, you'll need to look into making them, and if you need help with that, search around here and/or let us know where you're at with this, and we'll try to help
Last edited by GrapefruiTgirl; 05-08-2007 at 05:39 PM.
Well, I don't see those modules in the list. However, I've been in touch by email with the author of that web page, and he's giving me some direct help. Will report back on the results.
Hey, I was pleased to see a Nova Scotian replying, I'm a Canadian myself and spent 1/2 a year in NS (also 2 1/2 in NF). I was in the Annapolis Valley. Currently I'm in Almaty, Kazakhstan, but am moving to Moscow come fall.
OK, problem solved! It did involve loading the kernel modules, and then I could follow the instructions on the page I mentioned. If anyone would like specifics, just post a reply here, I think different machines would be different though - and probably not to many still running this model laptop, since it's three years old.