The lock/unlock sequence can be broken by buggy gnome-shell extensions crashing when they get told to deactivate/reactivate, so please start by removing any local extensions:
cd ~/.local/share/gnome-shell/ rm -rf extensions and then log in again. ** Package changed: xorg (Ubuntu) => gnome-shell (Ubuntu) ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete ** Information type changed from Public to Public Security ** Tags added: multimonitor -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/2069470 Title: 2nd Monitor is Visible On Lock screen. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2069470/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs