It appears the login screen processes are all running fine (gdms.txt). The only remaining problem I can see is that the nvidia driver can't find your monitor:
Jun 19 21:46:18 little-black-box /usr/lib/gdm3/gdm-x-session[1441]: (II) NVIDIA(0): Validated MetaModes: Jun 19 21:46:18 little-black-box /usr/lib/gdm3/gdm-x-session[1441]: (II) NVIDIA(0): "NULL" Jun 19 21:46:18 little-black-box /usr/lib/gdm3/gdm-x-session[1441]: (II) NVIDIA(0): Virtual screen size determined to be 640 x 480 Jun 19 21:46:18 little-black-box /usr/lib/gdm3/gdm-x-session[1441]: (WW) NVIDIA(0): Unable to get display device for DPI computation. Jun 19 21:46:18 little-black-box /usr/lib/gdm3/gdm-x-session[1441]: (==) NVIDIA(0): DPI set to (75, 75); computed from built-in default Please attach a copy of this file if you can find one of them: /etc/X11/xorg.conf /etc/xorg.conf /usr/etc/X11/xorg.conf /usr/lib/X11/xorg.conf Please also try unplugging/replugging the monitor, or replacing the monitor cable. And if you have a different monitor then please also try that. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1777378 Title: [nvidia] GDM no longer presents GUI login Ubuntu 18.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1777378/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
