I see a similar effect here. I had been running with desktop effects disabled (metacity), and then re-enabled them (switching to compiz). it seems that gnome-session is continually respawning metacity continuously, chewing up lots of CPU. metacity fails quickly because compiz is already running, but it gets started again immediately.
I think the problem is likely in gnome-session rather than metacity itself, though I haven't investigated. ** Package changed: metacity (Ubuntu) => gnome-session (Ubuntu) ** Changed in: gnome-session (Ubuntu) Importance: Undecided => High ** Changed in: gnome-session (Ubuntu) Status: New => Triaged -- compiz --replace fails to kill metacity, resulting in cpu overload https://bugs.launchpad.net/bugs/389686 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs