Hello,
Are there any plans for the nvidia drm driver to support HDR ?
As it’s currently in gamescope-git and will be in kde plasma version 6 once it officially releases.
Checking the arch wiki, we can see that it currently is supported only on amdgpu driver.
https://wiki.archlinux.org/title/HDR_monitor_support
https://community.kde.org/Plasma/Plasma_6
Basic opt-in HDR support. See https://invent.kde.org/plasma/kwin/-/merge_requests/4044.