While this bug don't happen very often to me, it behaves exactly as described.
Some clarifications: -It is not linked to Nvidia graphics, but happens on Intel too. -It is definetely about graphical window depth order. The "hidden" applications can be focused and work as expected. They even change the mouse cursor according to their actions. They are just obscured by the nautlilus or nemo desktop. -If nautilus or nemo is killed, all other applications reappear, until nautlilus or nemo is run again, in which case they are obscured again. This can be repeated reliable after the bug once triggered. -If metacity is restarted, the bug is gone until it is triggered again by unknown reason. Trigger is likely the apperance of a new window (I had the bug triggered on the failing appearance of some delete verification request dialog). -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to metacity in Ubuntu. https://bugs.launchpad.net/bugs/1538111 Title: untraceable serious bug in metacity 3.18 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/1538111/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
