Ubuntu

Fan control is not working – PC overheats

Asked by Daniel_le_Rouge

Hello!

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.

Thanks for any help!

Daniel

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Daniel_le_Rouge
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Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#1

Log a bug with acpi

you can do this with:

ubuntu-bug acpi

Maybe someone has a solution but a bug is always good

Revision history for this message
ahambidge (ahambidge) said : 		#2

Hello,

I had the same problem with an Acer laptop. It was resolved completely by upgrading the BIOS.

Regards,

Allan :)

Revision history for this message
Daniel_le_Rouge (ville-lumiere) said : 		#3

I filled the bug as you can see. I checked for the BIOS update. It is the most current version.

Revision history for this message
Daniel_le_Rouge (ville-lumiere) said : 		#4

I bought a new fan and that fixed the problem. So at the end it was no software, but a hardware problem.