Same here, on a desktop with 14.04 64 bit with default DE (Unity), using a gtx 260 with the recommended proprietary and tested driver, with all updates, using 2 external monitors.
I've tried turning off features/special effects in compiz to see if there was any change but the problem still persisted. It helped a bit but compiz was still eating abnormal amounts of cpu. I've found 3 solutions thus far that solved problem but I'm not sure if it'll work for anyone else: 1. Switching to the open source driver (in my case, the nouveau driver because I'm using an nvidia card) 2. Switching the DE to something that isn't unity 3. Disabling my 2nd monitor Obviously, the first option was ideal as everything just worked and I didn't have to sacrifice a monitor or switch DE's. -- 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/1293384 Title: Compiz CPU usage dramatically increased in Ubuntu 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1293384/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp