If the same fundamental issue persists in Wayland sessions then it sounds like a hardware limitation or a kernel problem. To help identify which, the Mutter developers might have some suggestions so please report the issue here:
https://gitlab.gnome.org/GNOME/mutter/issues ** Changed in: mutter (Ubuntu) Status: Incomplete => New -- 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/1886729 Title: Dell displayport YJ3Y6 adapter doesn't drive 4K screen properly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1886729/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
