protonscr

911 Operator

protonopen appid 503560Game compatibility - Unofficial
ValveSoftware/Proton#3023 · opened 2019-08-30 by naoliv · updated 2025-10-27 · 13 comments · github · game page · search this game
Nnaoliv 2019-08-30 github

Compatibility Report

  • Name of the game with compatibility issues: 911 Operator
  • Steam AppID of the game: 503560

System Information

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.

Symptoms

The game crashes without loading anything.
Logs are:

error.log.txt
output_log.txt
steam-503560.log (output from PROTON_LOG=1)

Reproduction

Just try to run the game forcing it to use Proton 4.11-3

Kkisak-valve maintainer 2019-08-30 github

Hello @naoliv, Proton uses DXVK to translate DirectX 11 to Vulkan, which your video card does not support.

You could try using PROTON_USE_WINED3D=1 %command% in the game's launch options to tell Proton to use the DirectX 11 to OpenGL render path or alternatively, you could try -force-glcore to tell Unity 5.4 to use OpenGL.

Nnaoliv 2019-08-30 github

I didn't know that, I am sorry.
It indeed did run with PROTON_USE_WINED3D=1 %command%
Probably this issue should be closed then?
Thanks!

Nnaoliv 2019-08-30 github

Or maybe convert it to a feature request: if the video card doesn't support Vulkan, probably Proton should fallback to OpenGL.

Kkisak-valve maintainer 2019-08-30 github

An automatic fallback was previously discussed on #1749, which concluded with https://github.com/ValveSoftware/Proton/pull/1749#issuecomment-489618385.

Nnaoliv 2019-08-30 github

Understood. Thanks again!

Kkisak-valve maintainer 2025-10-26 github

911 Operator (503560)

Issue transferred from https://github.com/ValveSoftware/Proton/issues/9144.
@VenomousSteam81 posted on 2025-10-26T20:45:55:

Compatibility Report

  • Name of the game with compatibility issues: 911 Operator
  • Steam AppID of the game: 503560

System Information

  • GPU:
  • Video driver version:
  • Kernel version:
  • Link to full system information report as Gist:
  • Proton version: GE-Proton10-21, UMU-Proton-9.0-4e, Proton Hotfix, Proton Experimental, Proton 9.0-4, Proton 10.0-2 (Beta)

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.

steam-503560.log

Symptoms

Game crashes without launching.

Reproduction

  1. Install game.
  2. Launch.
  3. Game crashes.
Kkisak-valve maintainer 2025-10-26 github

Hello @VenomousSteam81, your Proton log looks similar to https://github.com/ValveSoftware/Proton/issues/2340#issuecomment-3436899873, can you test removing AMDVLK for the driver mix?

VVenomousSteam81 2025-10-26 github

Hello @VenomousSteam81, your Proton log looks similar to [#2340 (comment)](https://github.com/ValveSoftware/Proton/issues/2340#issuecomment-3436899873), can you test removing AMDVLK for the driver mix?

How can I do that?

VVenomousSteam81 2025-10-26 github

steam-503560.log

Kkisak-valve maintainer 2025-10-26 github

ELF ecf93000-f246b000 Deferred amdvlk32.so AMDVLK is still there.

VVenomousSteam81 2025-10-26 github

How can I remove it then? I thought setting the launch args to PROTON_USE_WINED3D=1 %command% would fix it.

VVenomousSteam81 2025-10-27 github

Ah ha! I tried doing this earlier and forgot about it. I ran sudo pacman -Rd --nodeps lib32-amdvlk and now it works.

3320kg 2025-10-27 github

Huh. Well that's... ...very confusing. I ruled out amdvlk being a problem initially because I have AMD_VULKAN_ICD=RADV set globally. But now we know...

Proton versions

Launch options

Launch lines

Upstream links