I cannot reproduce this bug in an up-to-date Disco. OK, I think I discovered something, when I updated mutter in bionic-proposed, it didn't pull the updated version of libmutter-2-0 and gir1.2-mutter-2. So I had a mix of: mutter 3.28.3+git20190124-0ubuntu18.04.1 mutter-common 3.28.3+git20190124-0ubuntu18.04.1 gir1.2-mutter-2 3.28.3-2~ubuntu18.04.2 libmutter-2-0 3.28.3-2~ubuntu18.04.2
Now I cannot reproduce this bug after I manually installed libmutter-2-0 and gir1.2-mutter-2 from bionic-proposed. So I think the problem is mixing old and new versions of mutter packages. This bug could be closed unless there is a need not to. Thanks everyone. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1822857 Title: Alt+Tab produces visual artefacts when a modal dialog is open To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1822857/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
