I wound up just purging all 3rd party PPAs (probably ffmeg and/or vulkan were causing this).
Then I just: sudo apt reinstall gdm3 and the GUI was back. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2078376 Title: Unresolved problem in upgrade relating to update-manager To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/2078376/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs