Thanks for the bug report. 1. Please check that you haven't enabled any additional GNOME extensions in the 'Extensions' app. There should only be the three built-in ones. If you have more than that then try uninstalling or disabling them.
2. Next time you have to "hard reboot", please then run this command in a Terminal window: journalctl -b-1 > prevboot.txt and attach the resulting text file here. 3. Please also check for any recent crashes using these instructions: https://wiki.ubuntu.com/Bugs/Responses#Missing_a_crash_report_or_having_a_.crash_attachment ** Package changed: xorg (Ubuntu) => ubuntu ** Changed in: ubuntu Status: New => Incomplete ** Summary changed: - Xorg freeze + System freezes when in lockscreen ** Package changed: ubuntu => gnome-shell (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1913045 Title: System freezes when in lockscreen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1913045/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs