Problem found. Compiz was run without the --replace parameter. This resulted in metacity running in the background. I run compiz manually from gnome startup list instead of the appearance window because of another problem, irrelevant to this bug.
Anton, try to run killall metacity. If that frees up your cpu, than all is well - and make sure compiz is run with --replace. I think the bug can be marked invalid now. ** Changed in: compiz (Ubuntu) Status: New => Invalid -- Compiz hogs cpu on mobility radeon x1600 in Karmic https://bugs.launchpad.net/bugs/389686 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs