Seems that also on LG ULTRA WIDE it is a problem to use it's resolution using GTS 250 GeForce.
I was almost convinced that my video card was the problem.
ubuntu 16.04
maximum resolution allowed on ultrawide is 1920x1080, I was able in the past to see 2560x1440 resolution but when changed screen goes to black.
video driver: nVidia 340
Seems that also on LG ULTRA WIDE it is a problem to use it's resolution using GTS 250 GeForce.
I was almost convinced that my video card was the problem.
ubuntu 16.04
maximum resolution allowed on ultrawide is 1920x1080, I was able in the past to see 2560x1440 resolution but when changed screen goes to black.
video driver: nVidia 340