I have the same issue on xubuntu after switching to use compiz, because of screen tearing in videos.(which fixed the screen tearing).
I often encounter it in wine games like Hearthstone or World of Warcraft. I have a Nvidia GTX 760 and 331.38 driver on 64bit -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1314871 Title: Ubuntu 14.04 random screen freeze while Normal OS activites To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1314871/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
