This was a bug in the nvidia driver: https://devtalk.nvidia.com/default/topic/751552/any-opengl-window-shown-on-all-workspaces-occludes-other-applications/ It should be fixed in 340.24.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1314367 Title: Flickering with Ubuntu 14.04 and nvidia card reappeared To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1314367/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs