This machine is a fresh install so there have been no updates/upgrades. The initial install was 18.10 and whatever kernel came by default with that. I will test with the latest upstream kernel and report back.
-- 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/1802573 Title: Thinkpad x220 - Unable to use 2560x1440 external display connected via DisplayPort due flashing black screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1802573/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
