opening with wrong monitor resolution with HDR launch options

[VS4Nt0s]

version: proton-cachyos 1:10.0.20250520-2

Opening Hunt Showdown 1896 with the following launch options to force HDR to work makes the game opens the game on the primary monitor (fullHd) with the resolution of the second monitor 1080x2560.

i can reproduce this error/bug everytime and only happens when i'm forcing HDR to work.

launch options that trigger the bug : PROTON_ENABLE_WAYLAND=1 PROTON_ENABLE_HDR=1

digging throughout the logs i find one difference while searching for the "1080" since its the common searchable aspect between the two, its the following line:

[hdr launch options]
18028.601:01e4:01e8:info:vkd3d-proton:dxgi_vk_swap_chain_init: Creating swapchain (1080 x 1920), BufferCount = 3.

[normal launch]
18327.416:01d0:01d4:info:vkd3d-proton:dxgi_vk_swap_chain_init: Creating swapchain (1920 x 1080), BufferCount = 3.

i can provide more info if needed, if this isn't the place to report this bug please advise where to do it.

[GingerBobRoss]

I also experience this issue when i just tried to enable HDR with Silent Hill 2 Remake. This is not an issue with Silent Hill 2, but all games with HDR when using multiple monitors.

I have 1x 1080x1920 ( Monitor 2) and 1x 3440x1440 (Monitor 1)
If i set the game to use monitor 2, the game will go to my primary Monitor 1, but i can not enable HDR, because Monitor 1 is the 1080p monitor.
If i set the game to use Monitor 1, then it will will only scale to 1080p but HDR is able to be turned on and off
If i set it to monitor 2, then it will actually let me set my 3440x1440p resolution, but i cant enable HDR because EDID wise this is my 1080p monitor.
Using this command for Wayland/HDR causes a ton of issues with multimonitors and it will stretch to both screens or I just cant get it to the right screen or resolution at all.
https://postimg.cc/Lq68pbPW
https://postimg.cc/0MkWZ7LD

I guess the best way to put this is that the monitor settings are not able to be detected correctly and can be sometimes flipped over to the opposite monitors. So it thinks Monitor 2 is my main and Monitor 1 is the secondary.
Have not had luck getting this corrected unless we can run a launch command to select which monitor to run the game in thats not using gamescope?

[RevengeRip]

Issue with wine-wayland driver where it sorts monitors from left to right: https://gitlab.winehq.org/wine/wine/-/blob/master/dlls/winewayland.drv/display.c?ref_type=heads#L185 and https://bugs.winehq.org/show_bug.cgi?id=58126

Even though if that would be fixed there's still issue where we don't have concept of primary monitor in Wayland, so the games run fullscreen on the first reported wl_output. You can check if your primary monitor is reported as first with kscreen-doctor -o or xrandr. https://gitlab.freedesktop.org/wayland/wayland-protocols/-/issues/179