I have my LG M2380A monitor connected via HDMI to my Sapphire R9 290, on Windows 10 desktop everything looks fine, but when play a game on full screen, let's say Battlefield 4 or The Witcher 3, despite the resolution is mantained (1920x1080) the games will look just awfull, grainy.
I didn't have this problem with WIndows 7 and after I updated to WIndows 10 it started. I just don't know how to solve it, what I did notice is that when I play Battlefield 4 it says my monitor is on 59Hz, but on desktop it's on 60Hz. My monitor is capable of both, but why it just won't get the native resolution/refresh rate on games? Is it a driver problem? I'm using the latest Catalyst for Windows 10.