I'm unable to get nvidia gpu running on my ubuntu 18.04.2 PC.
I tried to do installation using apt-get install nvidia-driver-VERSION command with 391, 418 and 450 VERSION, but everytime without luck. I'm always getting black screen after logging in. I have the same with .run files from nvidia website.
I also tried to blacklist nouveau default driver using https://askubuntu.com/a/1129961. After blacklisting ubuntu had problems with determining my screen resolution, so I assume nouveau got disabled.
My GPU: Gigabyte GTX 980 Ti.