Fan control is not working – PC overheats

Binary package hint: acpi

I have a serious problem with my Fujitsu Siemens Pi 2530 running with Ubuntu 10.10.

Since several days the fan is not working anymore. The hardware was checked in store, but the problem resides on the software side.

So I tried some bugfixes:

   1. Changing the DSDT file does not work since Jaunty.
   2. In /etc/default/grub I changed the following:
      Code:

      GRUB_CMDLINE_LINUX="acpi.power_nocheck=1"

   3. I created this small script as in /etc/init.d:
      Code:

      #!/bin/bash
      #
      sleep 5
      echo -n 0 > /proc/acpi/fan/FN1/state
      echo -n 0 > /proc/acpi/fan/FN2/state
      echo -n 3 > /proc/acpi/fan/FN1/state
      echo -n 3 > /proc/acpi/fan/FN2/state

Nothing of it worked probably. Sometimes the fan works, but most of the time it does not. In the moment I cool the CPU with a blow dryer, but I need to find a solution, otherwise I will be doomed to use Windows.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: acpi (not installed)
ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
Architecture: i386
Date: Thu Nov 11 18:46:51 2010
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: acpi