Just had it happen on trusty 64bit, on a GeForce GTX 760, happend after update to nvidia-340 v. 340.29
A setting in CompizConfig has helped the issue: Under "Workarounds" check "Force full screen redraws (buffer swap) on repaint" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/269904 Title: Screen refresh problems with nvidia cards To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/269904/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs