Hi,
I am newbie. With new kernels from testing directory: 2.6.13 - 2.6.16.20 is fan off. With 2.4.31 is not.

Thanks for everyone.

I've got an ancient laptop (pentium 2) and the fan will only run when the CPU is near 100%. It's not a problem for me because it doesn't generate much heat. How new is your laptop?

Did you make sure ACPI is in the kernel? Maybe try `modprobe acpi_fan' or similar.

It is new laptop HP nx6110, Pentium M 1.6GHz, and very linux freindly - in Ubuntu is every HW OK

> modprobe acpi_fan
FATAL: module acpi_fan not found

How I install new kernels:
from testing directory:
installpkg kernel-generic, kernel-modules, alsa-driver;
update:
etc/lilo.conf
run:
sbin/lilo

I have flashed BIOS on last version.

You can try

modprobe fan
modprobe processor
modprobe thermal
modprobe battery
modprobe button
modprobe ac

and more to have full ACPI.

Make sure that "acpid" is running, if not type

acpid

If it will work you can add the needed kernel modules to your /etc/rc.d/rc.modules or if this doesn't work for you you can create an initrd.gz with needed modules in it (this works for me with older notebooks without problems).

Fluxx.

P. S.: And if it is a Centrino you can modprobe speedstep-centrino and run a little program "cpuspeed -d" (you can find it with Google) ...

I meant you should find the module associated with the fan portion of the ACPI. I don't know the names off the top of my head (as has been pointed out, the correct module name is fan. Also try seeing of acpid is installed correctly.

to: Fluxx

Every command "modprobe" is ok = without errors
after "modprobe thermal" fan is running - that is great, thanks
ACPI daemon is running - that is OK

but, There is (in booting procedure) several(8) "ACPI: Error Method parse/execution failed", when I wrote "modprobe commands" into etc/rc.d/rc.modules file. But it works, fan is running.

Do you think that an initrd.gz is better for me? And if yes, how can I make it?

In /etc/rc.d/rc.modules the lines should be

/sbin/modprobe module_name

Fluxx.

Fluxx: Yes, of course, it is right.

/etc/rc.d/rc.modules:

/sbin/modprobe fan
/sbin/modprobe processor
/sbin/modprobe thermal
/sbin/modprobe battery
/sbin/modprobe button
/sbin/modprobe ac
/sbin/modprobe speedstep-centrino

but, there is some lines from var/log/syslog

ACPI: setting ELCR to 0200 (from 0c00)
ACPI Error (evgpeblk-0284): Unknown GPE method type: C20E (name not of form-Lxx or Exx)
ACPI: Exception (evregion-0409): AE-TIME, Returned by Handler for [EmbebbedControl] [20060127]
ACPI: Exception (dswexec-0458): AE-TIME; While resolving operands for [AE_NOT_CONFIGURED] [20060127]
ACPI: Error (lsparse-0517): Method parse/execution failed [\_SB_.C002.C003.C004.C005] (Node c122d280), AE_TIME
ACPI: Error (lsparse-0517): Method parse/execution failed [\_PR_.C000.CST] (Node cf7cef60), AE_TIME
...
ACPI: Error (lsparse-0517): Method parse/execution failed [somethingelse] (Node somethingelse), AE_TIME
...

there is 6 "ACPI Exeptions" and 6 "ACPI Errors"

/sbin/modprobe fan
/sbin/modprobe button
don't makes Errors, but others (processor, thermal ...) yes

Do you think, it can be by flashing BIOS after linux installation?

But it works, fan is running.