This issue affects me, too. Whenever I try to use a newer kernel installed via Mainline app this issue occurs, using the default kernel works fine. I have no autologin enabled.
I have tested and can confirm that logging out and back in works and does solve the issue somehow. -- 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/2064177 Title: Window borders and shadows missing from GTK3 dialogs (if autologin is enabled and Xorg is used) To manage notifications about this bug go to: https://bugs.launchpad.net/gtk/+bug/2064177/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs