Getting HDR working on Linux

[Tomatoshadow]

If you're struggling to get HDR working on Linux (or getting the game working at all), I was able to get the option to not be greyed out in-game by forcing wayland in the launch options.

PROTON_ENABLE_HDR=1 ENABLE_HDR_WSI=1 PROTON_ENABLE_WAYLAND=1 %command%

If you have an NVIDIA GPU like me, you might also crash on boot. You might see people recommending to downgrade your drivers to 590 or lower but that's not necessary.

You can use these launch options:

DXVK_ASYNC=1 DXVK_HUD=1 VKD3D_FEATURE_LEVEL=12_0 PROTON_NO_FSYNC=1 PROTON_NO_ESYNC=1 PROTON_ENABLE_NVAPI=1 PROTON_VKD3D_HEAP=1 PROTON_NO_NGX_UPDATER=1 PROTON_ENABLE_HDR=1 ENABLE_HDR_WSI=1 PROTON_ENABLE_WAYLAND=1 %command%

Make sure to update to use proton-10.0-20260408 and to lower global illumination to low or medium (in Steam/steamapps/compatdata/3041230/pfx/drive_c/users/steamuser/Local Settings/Application Data/R5/Saved/Config/Windows/GameUserSettings.ini). If you don't, the game will launch but crash after a minute in the main menu.

If you do all that, you should have the game running with no crashes and HDR working :)

Hope it helps someone out there, messed around a lot before I was able to get everything working properly.

[Taha]

Personally your method didn’t fix crashes for my 5070ti, on the other hand this following method fixed it for me without downgrading gpu drivers

https://youtu.be/MSmmluCOq1U?si=qm0rPik-H7WNu3Kc

[Tomatoshadow]

Originally posted by Taha:

Personally your method didn’t fix crashes for my 5070ti, on the other hand this following method fixed it for me without downgrading gpu drivers

https://youtu.be/MSmmluCOq1U?si=qm0rPik-H7WNu3Kc

I did forget to mention that after crashing once, I had to delete my shader cache every time I wanted to launch the game... I haven't needed to with the settings I have now.

But hey, glad you found a solution! Wanted to share this for people looking for solutions on here so more solutions is only a good thing :)