Another thing that might help in triage is as per the workaround specified,
Changing screen position (in a 2 monitor setup: laptop + HD TV(via HDMI) ) corrects the problem, Important thing to note is that you can use [ nvidia-x-server-settings ] or [ gnome program: Displays] to do it, in either case as soon as I click 'apply' the black border issue is corrected. i.e. [ 'change position of either screen' -> 'click apply' -> screens blackout -> screens re-appear -> revert to previous configuration (or not) -> black borders gone ] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1576228 Title: Black borders around all windows To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1576228/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
