Tried again. I edited GRUB to boot with nomodeset - this didnt fix the login screen.
Them in a TTY I install nvidia-prime then ran sudo prime-select intel After a reboot graphical logon screen (lightdm slick-greeter) and logged in successfully to the desktop. So the regression here is that nvidia-390 is not installing the same config as generated by prime-select -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1764005 Title: Black-screen on boot with nvidia 390 for GTX 960M To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/1764005/+subscriptions -- ubuntu-bugs mailing list firstname.lastname@example.org https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs