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

  • @thadahEnglish
    31•7 months ago

    Hi! To enable HDR in most games you will need to set your game in fullscreen. Windowed or Borderless won’t allow you to use HDR functionality.

    You’ll also need to use the DXVK_HDR=1 %command% startup variable in steam to enable HDR in any Proton game. Proton 8 and 9 should support HDR without issuez although there are some games that might need additional configuration.

    If you use an NVIDIA card, you might need to enable NVAPI with DXVK_ENABLE_NVAPI=1

    Happy gaming! :D

    • zelifcamEnglish
      6•6 months ago

      deleted by creator

    • @[email protected]English
      3•7 months ago

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

      • millionOPEnglish
        2•7 months ago

        Oh really? That sucks, how do you work around that?

        • @[email protected]English
          2•7 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

          • millionOPEnglish
            1•7 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?

            • @[email protected]English
              2•7 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.

    • HominineEnglish
      3•7 months ago

      Excellent, thanks for this!

    • millionOPEnglish
      1•7 months ago

      Nice, this appears to allow me to enable HDR at least in Resident Evil 8.

      Is there a distinct command if the game is native Vulkan versus using the Direct3d to Vulkan layer?

      Edit: Lojcs is saying this only allows you to enable it but it isn’t actually working, https://a.lemmy.world/lemmy.world/comment/8535260

    • @BoiLudensEnglish
      1•7 months ago

      Well I was wondering this whole time how that works! Thanks a ton!