How can I set the HDR state in bazzite?

So on steam OS on the OLED, HDR is enabled, but not active, as shown in the screenshot below. This makes it so SDR games look as they should. Bazzite has the toggle, but it only makes it so HDR is always on or off, never in a state where it’s enabled like the steam deck. Is it possible to add this feature to bazzite? I’m also not sure if this is a bug, I will leave it as a question.

DevilFish303OP•2/14/24, 12:30 AM

i actually figured out how to force this state just like the steam deck, but it doesn’t work, and it’s obvious why. On SteamOS 3 i see that the environment variables to force hdr are set iff it gamescope-session detects the board galileo is present. I set these environment variables in bazzite, and upon enabling hdr in a game, it does not engage hdr on my TV. I think it may be a feature missing from gamescope.