(Recently,) it only happens when I make something full-screen on the external monitor. I do not think this is a hardware (which is brand new) problem. Just now I made a browser full screen and it immediately strted happening every several seconds for a couple of seconds at a time. I've attached the journal
** Attachment added: "journalctl -b0" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1929209/+attachment/5500460/+files/journal.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1929209 Title: external monitor goes black for several seconds at a time, randomly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1929209/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs