Hi, @Daniel van Vugt (vanvugt), I give you a report.
I have been rebooted my laptop and repeated the problem again, but I didn't find a file *.crash in /var/crash directory. Apparently, the problem is not crash (it's my opinion), because Operation System does't show error messages on my screen, so I can't use ubuntu-bug command -- 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/1972812 Title: The operating system does not ask for a password after unlocking the screen. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1972812/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs