protonscr

Far Far West

protonopen appid 3124540Game compatibility - UnofficialXAudio2
ValveSoftware/Proton#9738 · opened 2026-05-02 by fredrixk · updated 2026-05-11 · 6 comments · github · game page · search this game
Ffredrixk 2026-05-02 github

Compatibility Report

  • Name of the game with compatibility issues: Far Far West
  • Steam AppID of the game: 3124540

System Information

I confirm:

  • [ ✔️] that I haven't found an existing compatibility report for this game.
  • [ ✔️] that I have checked whether there are updates for my system available.

Symptoms

Immediately upon launching the game, I am met with a black screen with audio still functional. Then it shows 'Fatal Error' and closes immediately.

Reproduction

  1. Launch the game with Proton Experimental with the following commands: VKD3D_CONFIG=descriptor_heap,enable_experimental_features PROTON_VKD3D_HEAP=1 PROTON_LOG=1 %command%
  2. Run the game and get a black screen. Get an error message saying 'Fatal Error'. Game closes.

steam-3124540.tar.gz

Ssimifor 2026-05-03 github

@fredrixk the game's working fine on my end with a 4060m, the same driver version, and proton experimental + locally built vkd3d-proton for descriptor heaps changes as I don't think those would be on upstream proton otherwise. It also worked with the normal build of proton, without descriptor heaps. Have you tried wiping the prefix and seeing if the game starts without extra launch parameters?

Ffredrixk 2026-05-04 github

@simifor Launching without those parameters gives me the same result - 'Fatal error' with a black screen'

Ffredrixk 2026-05-04 github

I think this may have to do with the nvidia 50 series on linux. The devs have now given a patch note stating that the only fix for it now is to run it using -dx11. https://farfarwest.notion.site/help-me

Rrochy-roch 2026-05-08 github

I think this may have to do with the nvidia 50 series on linux. The devs have now given a patch note stating that the only fix for it now is to run it using -dx11. https://farfarwest.notion.site/help-me

It runs ok DX12 no need to use -dx11 using CachyOS's own proton-cachyos-11.0
and launch options PROTON_VKD3D_HEAP=1 VKD3D_CONFIG=descriptor_heap %command%

Ffredrixk 2026-05-10 github

@rochy-roch It does crash sometimes even with the cachyos-proton and those launch options. It usually crashes when I try to pick up a gun fragment during the missions. Im assuming you are using the 50 series nvidia cards, usually these cards are the ones that have a problem with UE5.

Rrochy-roch 2026-05-11 github

@fredrixk
Sorry, yes you are right.
I dual boot and had only played full games in Windows. I'd installed it on CachyOS & messed about getting it to boot with DX12, see that it loaded ok to the home/Saloon area & just assumed that all was good. I just tried & i can't even load into a mission without it crashing and yes I'm using a 5080.