HDR on Linux

My method to make HDR option available in setting while running game on Linux.

Intro

Currently this guide provides only method I`m using to make game run with HDR.

Feel free to share your methods, maybe ill add them.

P. S. Make sure your monitor, its cables supports HDR ( I had to buy a new DP cable )
and game has fullscreen setting set.

P.P.S. If you experiencing stutters after playing for some time, then this guide will be helpful: https://steamcommunity.com/sharedfiles/filedetails/?id=3393460710

Requirements

You need to install gamescope. If it doesn't work ( game hangs on black screen on startup ) then try gamescope-plus. ( not sure, still persist, sometimes... )

If game is refusing to start then make sure amdvlk is not installed.

On Plasma 6.2.4

I'm running Manjaro with 6.12.4-1 kernel, Plasma 6.2.4 with Wayland.
HDR in display configuration should be on, because game will be shown very saturated.

Put this in launch options and you good to go

 gamescope --force-grab-cursor -f -w 1920 -h 1080 -r 75 --hdr-enabled --hdr-debug-force-output --xwayland-count 2 -- env STEAM_MULTIPLE_XWAYLANDS=1 DXVK_HDR=1 ENABLE_HDR_WSI=1 %command% 

-w is monitor width, -h - height and -r - fps lock.

Other method ( Run in another TTY )

Old method I was using, maybe will be helpful for someone.

I`m running Fedora 41.
This method, in theory, should work with any distro.

Then:
1. Open your home folder.
2. Create file with name steam-gamescope.sh
3. Open it in text editor and paste this code below and save it.

#!/bin/bash
STEAM_MULTIPLE_XWAYLANDS=1 DXVK_HDR=1 ENABLE_HDR_WSI=1 gamescope -f -e -w 1920 -h 1080 -r 75 --xwayland-count 2 --hdr-enabled --hdr-debug-force-output -- steam -gamepadui -steamos3

-w and -h - should be your display resolution.
-r is display frequency.

4. Open terminal and type: sudo chmod +x steam-gamescope.sh
5. Exit steam
6. Press Ctrl+Alt+F3 and login.
7. Type: ./steam-gamescope.sh
8. Launch game, enable HDR in settings and enjoy.

After you done playing stalker, close it and press Ctrl+Alt+F2.
If you later want to use Steam - simply exit it using tray icon and launch again normally.

Hope it helps you.

[noiro.bogdan]

Nice, thank you!

[Way She Goes]

Are all Linux users so