Yep see exactly the same thing here on a Dell Latitude 7440 with Haswell i7 4600U.
As an extra data point, I'm running a newer kernel: uname -a Linux e7440 3.15.0-031500rc2-generic #201404201435 SMP Sun Apr 20 18:36:18 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux -- 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/1322751 Title: Compiz running on Intel Haswell GPU has 100% CPU usage when computer is locked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1322751/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : [email protected] Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp

