protonscr

[CachyOS] Batman Arkham Knight fails to launch (Invalid DefaultMaterialName!)

protonclosed
ValveSoftware/Proton#8800 · opened 2025-06-12 by Ralkero · updated 2025-06-12 · 1 comments · github
RRalkero 2025-06-12 github

Compatibility Report

  • Name of the game with compatibility issues: Batman: Arkham Knight
  • Steam AppID of the game: 208650

System Information

  • GPU: NVIDIA RTX 2080 Super
  • Video driver version: 575.57.8
  • Kernel version: 6.15.2-2-cachyos (64-bit)
  • Proton version: Tried multiple, including GE 10-4, GE 8-32, Experimental, proton-cachyos native, Proton 9.0-4

I confirm:

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

What I have tried so far:

  • Tested with multiple Proton versions:

    GE-Proton8-32 (recommended)
    GE-Proton10-4 (less stable)
    Cleaned Proton prefix
    Verified game files via Steam (no corruption found)

Tried combinations of these launch options:

-dx11

-nointro (game closed without even showing splash screen or error message)

PROTON_ENABLE_NVAPI=0 PROTON_HIDE_NVIDIA_GPU=1 DXVK_ENABLE_NVAPI=0 DXVK_ASYNC=0 DXVK_STATE_CACHE=0 (game closed without even showing splash screen or error message)

PROTON_USE_WINED3D=1 (successfully showed splash screen + original error)

Also tried launching with no launch options, same result

Used winetricks with GE-Proton8-32’s internal Wine to avoid Wine 10.9 WoW64 bug.

Re-ran game:
After installing physx + xact, game failed even earlier (no splash screen)
Determined that physx is broken with Wine 9.5+ (Wine bug 56606)

I generated a log file using Proton, view the attached file.

I'm completely thrown by this because the game runs fine on the Steam Deck. No issues whatsoever. So I must be missing some dependency, or have something configured wrong. Any help would be appreciated.

Image

steam-208650.log

Kkisak-valve maintainer 2025-06-12 github

Hello @Ralkero, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/558#issuecomment-2966509794.

Proton versions

Launch options

Upstream links