Ubuntu – Fan runs constantly on an Acer Aspire s3


I have a new Acer Aspire S3 notebook and problems with the fan. After installing Ubuntu 11.10 (but also with the Xubuntu live-disc) the fan is running constantly. Is there any possibility to:

  1. Stop the fan manually to see the heat development
  2. Adjust the fan-control
  3. Reduce the processor load or something else to reduce the produced heat

Has anybody experience with this system?


I also tried the sensors-detect command from the lm-sensors package and sudo pwmconfig. It responds:

/usr/sbin/pwmconfig: There are no pwm-capable sensor modules installed

Since I have to decide fast whether to return the notebook or not I also posted the question in this forum.

I hope that is ok. Any hint is very much appreciated.

Best Answer

I am having the same problem. After breaking my head with information in the net, I found that one of these can be the reason:

  1. Your BIOS is outdated, so you need to update your BIOS.
  2. Most problems start after you run Ubuntu updates, which install some propriety software and the drivers are (purposefully? Eg:Radeon ones) incomplete.
  3. Some lines in your grub configuration are put to wrong value. (DEFAULT_CMD_something line)
  4. Your laptop's battery is dead and always requires power to run.
  5. Your power supply is different in voltage from the country you bought laptop.

Solution: Forget the incomplete drivers which are the root cause of problems. Re-install the Ubuntu 11.10 and never ever update the recommended updates. If you do so, you end up with proprietary problems. So just re-install and be happy.

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