Hi it happened again. This time pretty bad, the monitor did not wake up, even after various Ctrl-Alt-F. But after I switched it off-on, it worked.
I was able to login using the other monitor and I immediately check the time: 18:23:37. The other monitor finally came back after that time. I attach the journal file. ** Attachment added: "journal.zip" https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1972059/+attachment/5589626/+files/journal.zip -- 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/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 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs