Question I can't get DSR to work on mirrored display with an RTX 4070 ?

Jun 4, 2024
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Please help, I've tried everything!

Setup:

* RTX 4070 GPU

* 1 x 2560x1440 @144 hz monitor

* 1 x 3840x2160 @ 120 Hz TV

* 1 x 3840x2160 @60 Hz monitor

What I am trying to accomplish: To mirror my 1440p monitor to my TV, and use DSR on my 1440p monitor so that it is essentially a 4K monitor, so that I can record gameplay in 4K and play on my TV at the same time.

The problem: When I use DSR in mirror mode, I can only select 1440p in the graphics options of all games, although my desktop resolution is apparently set to 4K.

What I have tried: Turning off monitor mirroring and using DSR in games works, it shows 4K resolution options in game on my 1440p monitor, but as soon as I turn on mirroring, it stops showing 4K in the menus.

I'd greatly appreciate any help or solutions for this problem.
 

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