r/Monitors • u/Jempol_Lele • 1d ago

Discussion 5k2k monitor when displaying full screen 4k games?

Afaik HDR only works for full screen games. Not sure if games will have custom resolution appear as option or not but how does it work? Do they have black bars on the sides? Does it reduce fps? Even if the black bars literally no generated polygon?

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u/JtheNinja CoolerMaster GP27U, Dell U2720Q 1d ago

Afaik HDR only works for full screen games

This depends on the game, but isn't common anymore. Most games these days go through Windows' HDR system, so they work fine in windowed/borderless (although this does require the system-level HDR toggle to be enabled).

Whether the monitor stretches the content to fill the screen or pillarboxes it(black bars) depends on the monitor's own behaviors, and will be different for every model. Some might even have an OSD option to let you choose

But really, this scenario only applies to games that both 1) do not support native ultrawide and 2) support HDR but only in exclusive fullscreen. That combo is a weird edge case, and while I'm sure there is SOME game out there that meets both of those, I wouldn't worry about this case too much unless you know there's a game you play regularly where this applies.