Installed Drivers for Titan X, turn off system.. when turn back on login loop

I’ve been researching online for the last few hours and can’t find a solution to this problem.

I installed the 378.77 driver ion Ubuntu 16.04 LTS for new Titan X, the resolution changed to being v high quality after that. A few hours later turned the system off and when I turned back on am now stuck in login loop (after adding details screen just refreshes back to empty submission boxes) and the resolution has reverted to like it was before installing driver.

I haven’t found any way to solve this, I’m literally praying that someone knows what to do.

Ctrl + Alt + F2

login as a user

run journalctl and check for errors