High X CPU issues are almost always due to some client application driving the load up. As long as it doesn't crash X and things keep working, there isn't anything wrong with X - it's the client app that needs fixed. ;-)
In this case, since you found cpu usage went down when compiz was turned off, that indicates something compiz does is causing the excess load. Refiling. ** Summary changed: - xorg high cpu usage while using top command + xorg high cpu usage with compiz while using top command; goes away when compiz is killed ** Package changed: nvidia-graphics-drivers (Ubuntu) => compiz (Ubuntu) -- 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/737454 Title: xorg high cpu usage with compiz while using top command; goes away when compiz is killed _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : [email protected] Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp

