In case it was a kernel problem (I have also had a kernel update since I last rebooted, from 4.15.0-42 to -43), I installed the latest HWE 18.04 kernel, but that did not help.
I should note that in fact the screen shield *does* sometimes activate; but when it does, pressing a key reveals only the grey background, not the login dialog. Another potential culprit might be gdm3, but of course there has been no update to that package recently. -- 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/1812373 Title: Lock screen stopped working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1812373/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
