Although I might be assuming too much because if the bug happened 2 seconds before the log in comment #26 then there's nothing about it being logged. That's normal for freezes. In that case we need to enable full debug mode in /etc/environment:
MUTTER_DEBUG=kms reboot and then next time a freeze happens run: journalctl -b0 > journal.txt and compress the resulting text file before attaching it here. -- 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/2035016 Title: one of 3 monitors "frozen" when a window moves there To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2035016/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs