I know 18.10 is already unsupported, but I guess it applies to later versions as well.
The solution to this is to make gdm use Xorg instead of Wayland. In file /etc/gdm3/custom.conf uncomment the line WaylandEnable=false -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1800763 Title: After installing the package with version 340.107, the system won't start To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-340/+bug/1800763/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
