Is your monitor a 1080p native display?
Of the 3 monitors I have owned, I learned that they can only handle up to twice their native resolution before they black out and fail the test. My 1200p monitor got me 2400p, and my newer 1440p monitor gets me to 2880p.
One day I’ll get a 4k monitor for a possible 4320p range, but until then, Ralf has already given us virtual monitor that can do 8K and everything in between. It couldn’t be simpler to use really – just push the power button off on your monitor and virtual monitor kicks on automatically. The only gripe I have with it, is that I can’t Alt+Tab to desktop view to launch mod tools needed for some games.