I also have this problem. Differences for me:
I have a RTX 2080 and installed Nvidia's 410.78 driver manually. Whenever I boot, I too get the black screen with a blinking cursor. I also have the ctrl+alt+F3, login and run startx This brings me to the gnome desktop instead of the traditional Ubuntu desktop. I am not really sure how to fix this issue. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1796614 Title: [nouveau] Ubuntu 18.10 boots to a blank screen with a blinking cursor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1796614/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs