Christian, I'm not sure that's exactly the same as this bug since this bug is about "flicker" and failure to log in, while you refer to "artifacts". It's probably best if you report a new bug for that by running:
ubuntu-bug gnome-shell -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1841145 Title: Impossible de switch user from lock screen on GDM3 18.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1841145/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
