If I had to guess then I would guess the most likely cause is the changes I made in the latest update:
https://launchpad.net/ubuntu/+source/mutter/3.28.4-0ubuntu18.04.1 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1832138 Title: Login screen never appears on vmwgfx but setting WaylandEnable=false fixes it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1832138/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs