Hi all,
I have an HDR capable monitor, HDR enabled in KDE plasma, but I still can't get some games to let me switch on the HDR toggle. Every time I turn it on in the game, it says something along the lines of "your hardware must support HDR" or some shit like that. After some online searching, I was able to enable it on ONE game in the heroic games launcher with (I think) a launch command? Where I threw there a "--HDR" and some other strings in there after enabling gamescope (this is where shit starts to confuse the hell out of me), then the game let me actually toggle HDR on. I can never do that on Steam. I am trying to play Indiana Jones and the great circle and it says the same. Same with Resident evil 4.
How do you do it? Is there a guide or something to follow? Is it like per game? Like some games allow it and others don't? Also, and most importantly, how the hell does gamescope work? On heroic, there are things like "Game width, game height, upscale width and upscale height". On Lutris, there is a cleaner way with dropdown menus where you choose a "Output resolution" and a "Game resolution" resolutions. What are those? Which is which?
Sorry for the very long post, and I appreciate any help
Thank you
I got HDR working nicely in Steam under Fedora 42 and Hyprland
Get protonplus https://github.com/Vysp3r/protonplus
Use protonplus to install proton-ge-4 and restart steam
In compatibility options use proton-ge-4
In the game launch options set
PROTON_ENABLE_WAYLAND=1 PROTON_ENABLE_HDR=1 %command%
This works really nicely in Hunt Showdown
Thank you so much. This is what I needed. Does this enable HDR on the game in general, or does it enable the toggle for HDR in the game? Also, do I need the Wayland parameter if I'm already on Wayland?
It will just make sure Proton tells the game your display supports HDR, you'll probably still need to enable it in game, unless the game uses it by default.
The Wayland flag tells Proton to use Wayland natively instead of xwayland, so you do still need it.
Awesome. Thank you so much.