Thank you for taking the time to report this bug and helping to make Ubuntu better.
You've not given details as to your actual install; was it a Ubuntu Desktop 20.04 LTS or Ubuntu Server 20.04 LTS? You do mention moving mouse; a device not normally attached to servers, so I'm assume (rightly/wrongly) you're asking about a desktop system - but it's best if these details are provided. Please execute the following command only once, as it will automatically gather debugging information, in a terminal: apport-collect 1964711 When reporting bugs in the future please use apport by using 'ubuntu- bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs. (Note: this issue could be related to https://bugs.launchpad.net/bugs/1851992) ** Package changed: ubuntu => gdm3 (Ubuntu) -- 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/1964711 Title: Locked Ubuntu is frozen and cannot be unlocked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1964711/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs