I can confirm that this issue occurs with gnome-shell as well. It has been bugging me for a while now since it already started to occur in Ubuntu 11.10, again with gnome-shell.
OS: Ubuntu 12.04 (x64) Video card: ATI HD6950 Drivers: proprietary AMD CCC 12.4 (fglrx 8.961) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/969860 Title: [fglrx] compiz uses 100% CPU when screen turns off (spinning in glXWaitVideoSyncSGI or glXSwapBuffers) To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/969860/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
