I've occasionally seen the same problem in multiple compositors with multiple different GPUs over the past 10 years. This seems like some kind of Xorg compositing race/failure.
** Tags added: nvidia ** Summary changed: - Display glitches when showing context menu + [nvidia] Display glitches when showing context menu ** Package changed: xorg (Ubuntu) => mutter (Ubuntu) -- 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/1918658 Title: [nvidia] Display glitches when showing context menu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1918658/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs