As requested attaching a result of a journalctl -b0 command. This happened after renaming monitor.xml and monitor.xml~ so unfortunaltely that does not help.
** Attachment added: "journal.txt" https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2023647/+attachment/5679605/+files/journal.txt -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2023647 Title: Screens go into flicker cycle after going blank with external monitor(s) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2023647/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
