I wonder if this is a distant relation to bug 1716857... Can you try this?;
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics- drivers-418/+bug/1716857/comments/26 ** No longer affects: linux (Ubuntu) ** Changed in: nvidia-graphics-drivers-390 (Ubuntu) Status: New => Incomplete ** Also affects: systemd (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-390 in Ubuntu. https://bugs.launchpad.net/bugs/1864781 Title: System with GeForce GT 520 failed to boot when nvidia-390 was installed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-340/+bug/1864781/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp