Thanks for the bug report. Next time the bug happens please run: journalctl -b0 > journal.txt
and attach the resulting text file here. Please also try selecting 'Ubuntu on Xorg' at the login screen and tell us if it has the same problem. ** Package changed: xorg (Ubuntu) => mutter (Ubuntu) ** Changed in: mutter (Ubuntu) Status: New => Incomplete ** Tags added: i915 multimonitor -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1972059 Title: One screen does not come back from lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1972059/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs