Plasma 6: How to use HDR with games? - eviltoast

As the title asks, how does one actually use HDR for games after upgrading to Plasma 6?

This was the feature I was most excited about, and I can hit the HDR button on my display configuration and it looks like the desktop is going into HDR mode, but so far I have had zero luck enabling the HDR feature in games. Every game I’ve tried had the HDR toggle disabled with no way to enable it.

I am running these games under Proton and I’ve tried both 8-GE and 9 Beta. Any tips?

Edit: probably important to note that I am using an AMD GPU under Wayland

  • Lojcs@lemm.ee
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    8 months ago

    This only lets you enable hdr in game. Since proton runs under xwayland the hdr info won’t reach the compositor.

      • Lojcs@lemm.ee
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        8 months ago

        Gamescope supports hdr with --hdr-enabled --hdr-debug-force-output flags and running the game under it doesn’t require xwayland in my understanding. It doesn’t support nvidia though

        • million@lemmy.worldOP
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          8 months ago

          So what is the benefit of KDE’s HDR support at that? Could you do something similar under Gnome and get HDR support in games?

          • Lojcs@lemm.ee
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            8 months ago

            If gnome supports hdr too you can. Kde’s support is a part of the stack that needs to support hdr for it to work. The programs and drivers can speak hdr all they want but if the compositor (kde) doesn’t understand and relay the info to the monitor it won’t work.