Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

It's a "problem" that i have since 11.10, now I've upgraded to 12.04 (fresh install). Even while ondemand governor is set, and the computer is idle, fan goes on and doesn't want to shut down.

Images below:



share|improve this question
up vote 4 down vote accepted

Open up the terminal, do a

sudo apt-get install dstat

and type in:

dstat -c -y -l --proc-count --top-cpu

dstat is a system monitoring tool (like vmstat) and will show you the processes which consume the most CPU resources.

share|improve this answer
thanks ! it showed that no process is using CPU extensively. There's probably something wrong with GPU drivers ;/ – paniczklos Apr 15 '12 at 21:12

Had the same problem. I had to remove the following boot-parameters (which I have added some months ago) to solve the problem:

pcie_aspm=force acpi=noirq
share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.