Re:DisplayPort and 4K
by thaumasiotes on Tuesday February 18, 2020 @01:02AM
(#22353836)
Right, that's what I tried to do, but the game renders an image by referring to the window size rather than the graphics settings. (Or at least, when I force the window into borderless fullscreen, fps drops to the same rate at which it normally renders 3840x2160.)
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Maybe enabling GPU scaling in conjunction with the game's regular fullscreen mode set to 1920x1080 might do the trick?
In that case, instead of physically changing your monitor's resolution when entering (true) fullscreen mode, the GPU should simply rescale the game output as required to match your regular resolution.