HDR not being detected in Far Cry 5

[DownloadFreeloader]

Is there an existing issue for this?

• I have searched the existing issues

Are you using any gamescope patches or a forked version of gamescope?

• The issue occurs on upstream gamescope without any modifications

Current Behavior

In Far Cry 5's video option menu, the selector for HDR says "N/A" despite --hdr-enabled --hdr-debug-force-output being added to my gamescope launch options. I've tried adding DXVK_HDR=1 and ENABLE_HDR_WSI=1, neither of which helped. HDR is enabled in KDE and on my monitor.

Steps To Reproduce

1. Launch Far Cry 5 with gamescope -f -h 2160 -r 240 --hdr-enabled --hdr-debug-force-output -- %command%
2. Go to the video options menu
3. Behold

Hardware information

- Distro: Arch (kernel 6.12.6.zen1-1)
- CPU: AMD Ryzen 7 5800X3D 
- GPU: AMD Radeon RX 7900 XTX
- Driver Version: Mesa 24.3.2-arch1.1

Software information

- Desktop environment: KDE 6.2.4
- Session type: wayland
- Gamescope version: gamescope version 3.15.15 (gcc 14.2.1)
- Gamescope launch command(s): gamescope -f -h 2160 -r 240 --hdr-enabled --hdr-debug-force-output -- %command%

Which gamescope backends have the issue you are reporting?

• Wayland (default for nested gamescope)
• DRM (default for embedded gamescope, i.e. gamescope-session)
• SDL
• OpenVR

Logging, screenshots, or anything else

No response

[doitsujin]

might need nvapi? not sure if HDR is expected to work in this game.

[ryzendew]

might need nvapi? not sure if HDR is expected to work in this game.

it works fine in this game but only if DXVK_HDR=1 is used