I had the same problem using a Ubuntu 12.10/Gnome 3.6/Radeon HD 6650M /fglrx-updates set up. None of the workarounds worked for gnome-shell (although they worked when using Unity).
My workaround was to uninstall gnome-screensaver and replace it with xscreensaver. -- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/969860 Title: fglrx 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 _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : [email protected] Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp
