Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

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

I'm running Raring Ringtail 13.04 on a PC Core 2 Quad 3GHz with 4GB RAM and after the latest round of updates Compiz is using 40% of processors capacity when idle. Previously it was doing fine. Running top shows compiz eating up all of the CPU. All other apps appear fine. Does anyone have any ideas or experiencing the same issue?

I am using a Video Card NVidia 9800GT 1GB RAM, using drivers NVidia.

share|improve this question
I reinstalled NVidia driver and now Compiz is normal again, using 1% of CPU. Thank you for your reply. – Marcos Martinelli Apr 29 '13 at 12:51
A working solution is described here - I hope it helps you as much as it helped me! – Torben Gundtofte-Bruun Jun 23 '15 at 21:30

Perhaps Compiz uses LLVM instead of Nvidia drivers? See How can I tell if I'm using LLVMPIPE? to find out.

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.