The user I referred to in the last comment has proposed changes to /lib/systemd/system/gdm3.service
to fix the problem. I have added his proposed changes to this report: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1716857 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1714881 Title: no gdm3 greeter with nvidia quadro and modeset=1, discrete nvidia (not optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/gdm/+bug/1714881/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs