Krister, Other people are saying that kernel 4.15 has fixed the problem. Can you please try testing it by booting this?
http://cdimages.ubuntu.com/daily-live/current/ ** Changed in: gdm3 (Ubuntu) Status: New => Incomplete ** Changed in: mutter (Ubuntu) Status: New => Incomplete ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Changed in: linux (Ubuntu) Importance: Undecided => High -- 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/1749975 Title: Flickering screen with ultra-wide monitor in Wayland mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1749975/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs