OS: Ubuntu 20.04 LTS; Graphics: GeForce GTX 1060 6GB/PCle/SSE2; Monitor: ASUS PB287Q; Port: Display Port;
I just installed Ubuntu 20.04 LTS and attempted to apply fractional scaling to the display.
When changing the display scale option to 150%, the screen went blank/black for roughly 10 seconds and then came back and showed an error, without the scaling applied.
With the fractional scale option still selected, I changed to 200%, and then the screen went blank and stayed that way.
After turning my PC off and on again, I can login normally, but after logging in, the screen turns blank again and I can't do anything.
I could just re-install the system, but I'm hoping for a solution in case I face this problem again in the future.