ACPI and Fan control

[duveit]

I have installed FC3 on my G556E Elitegroup laptop, on a second partition, in other words I got a dualboot configuration.

And what I have noticed is that the fan is alot more noisy when I'm running Fedora than XP. And this is not because Fedora makes the computer alot hotter, as I've rebooted straight into XP after running Fedora, and the fan gets off or alot more quiet at once.

On my Fedora setup, I know that ACPI is running, however, I've read some around earlier, about where I should be able to find fan speed and such in /proc/ , but all the folders are emtpy.

So I was wondering if anyone happend to know a good way to control the speed of my fan in order to make it more quiet.

Still a newb on Fedora/linux, so I'm not sure which details I should mention to make it easier to figure out. I've checked my system logs and seen that the ACPID starts up just fine though.

Hope someone can help me with this, seeing as its so noisy I rather run XP now because of it.

Cheers Duveit

[capitalf]

I've noticed this problem too. Mine goes a step further and seems to have the fan completely shut off at startup. I am running the 2.6.11-1.14_FC3 kernel on an IBM Thinkpad T22.

[WidreMann]

I use 'acpi=ht' on the kernel command line when I have the laptop plugged in and that seems to solve all my fan problems. When I am running it mobile I use 'acpi=on'. However, I have a ThinkPad R30, so this may not work for you.

[duveit]

There seem to be no difference from using those commands. Im mainly looking for a program which can control the fan after temperatures which I can custom.

[henningl]

lm_sensors is supplied with a script "fancontrol" wich does what you ask for. It allows you to link fanspeeds against temperature-sensor readings.

But sadly fancontrol doesn't work with the last 2.6.11 kernel. Yet..

[duveit]

Would it be possible to compile a kernel with support for it?

I've seen some solutions for brand specific laptops, surely there must be some programs out there which offer the same for a generic laptop?

I installed gkrellm in hopes it would suit my needs, but it cant read any of the sensors, even when I got acpi enabled etc.

I dont suppose this is what you refer to with the fancontrol script?
That it would make references/proc files for the sensors and fans I mean, which then could be manipulated?

If it werent for the noise from the fans, I would acctually prefer FC3 over XP now, so I hope I can find a solution for this as its a shame having to boot XP everytime I want some peace to write and such. (Usually I got music to drown the fans, but sometimes I prefer complete silence to concentrate).

~Duveit~ Still a linux newb