My Monitor has been having this problem since I purchased it the model is the Acer KG251QF 24.5" 1080p Free-sync 144Hz the problem I am having is the monitor turning on and off after launching a game it seems to be fixed after turning it on and off almost like letting it catch up but sometimes this will cause the game to crash which is very infuriating after waiting forever for a game like gta 5 to launch.