I am now able to reproduce and debug the problem. Indeed it is what I said in comment #31.
The vmwgfx driver in this old kernel is telling lies. It says the next screen refresh is in 49 years from now. It should be within 16.6 milliseconds. ** Summary changed: - Login screen never appears on vmwgfx but installing kernel >= v4.17-rc1 (or using WaylandEnable=false) fixes it + Login screen never appears on vmwgfx using bionic kernel 4.15 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1832138 Title: Login screen never appears on vmwgfx using bionic kernel 4.15 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1832138/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs