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Plasma 6: How to use HDR with games? (lemmy.world)
submitted 8 months ago* (last edited 8 months ago) by million@lemmy.world to c/linux_gaming@lemmy.world
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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

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[-] domi@lemmy.secnd.me 10 points 8 months ago

To play Proton games you only need the latest gamescope from git, the HDR layer and environment variables are no longer needed for gamescope

Just set the launch arguments on Steam for any game to: gamescope --hdr-enabled --nested-refresh 165 --fullscreen --steam -w 3440 -W 3440 -h 1440 -H 1440 -- %command%.

Don't forget to set your refresh rate and resolution.

If you want to play videos files in HDR (YouTube also works) you need to use mpv together with the HDR layer.

After installing the layer you can run mpv like this: ENABLE_HDR_WSI=1 mpv --vo=gpu-next --target-colorspace-hint --gpu-api=vulkan --gpu-context=waylandvk "https://www.youtube.com/watch?v=dQw4w9WgXcQ".

[-] million@lemmy.world 4 points 8 months ago

Thanks, appreciate the write up. Definitely sounds like HDR under Linux has a long way to go to reach the "just works" level.

I asked this in another thread but I would be curious to get different perspectives; could you use gamescope and mpv under Gnome and get HDR support or is KDE's HDR support essential here?

[-] usrtrv@lemmy.ml 3 points 8 months ago

On the Steam Deck it already "just works" for a lot of games (with an OLED or an external display). So we're not that far off for those changes propagating to Desktop.

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this post was submitted on 17 Mar 2024
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