I found the upstream bug and attached it. The bug symptoms are the same. ** Bug watch added: gitlab.gnome.org/GNOME/mutter/issues #196 https://gitlab.gnome.org/GNOME/mutter/issues/196
** Also affects: mutter via https://gitlab.gnome.org/GNOME/mutter/issues/196 Importance: Unknown Status: Unknown ** Package changed: gnome-shell (Ubuntu) => mutter (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1822857 Title: Alt+Tab produces visual artefacts when a modal dialog is open [with mismatched mutter packages installed] To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1822857/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
