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If the game offers "borderless fullscreen" or "fullscreen windowed" then that's what you want. There are 3rd party utilities that can force it for games lacking
by brigade 7y ago
If the game offers "borderless fullscreen" or "fullscreen windowed" then that's what you want. There are 3rd party utilities that can force it for games lacking the option, but I can't speak to how well they work.
- thaumasiotes 7y agoRight, 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.)
- iggldiggl 7y agoMaybe 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.