Desert Bus VR (638110)

Compatibility Report

• Name of the game with compatibility issues: Desert Bus VR
• Steam AppID of the game: 638110

System Information

• GPU: GTX 1060
• Driver/LLVM version: 4.6.0 NVIDIA 440.64
• Kernel version: 5.4.0-37-generic
• Link to full system information report as Gist: https://gist.github.com/CDAGaming/25ab3e7b8083cdd42cee66a88190afe5
• Proton version: 5.0.9

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.

steam-638110.log

Symptoms

Game works fine albeit with some jitters while the game is loading and noticeable shader reloading. Primary Issue being reported here is from an error occurring in with an OperationNotImplemented when selecting whether or not to run with VR (See Reproduction for specifics).

Reproduction

1. Opening the Game will show the following screen:
   

2. Clicking in this Example "Open in Non-VR" will yield the following error followed by the window immediately closing:
   

Workarounds

A working workaround for Non-VR is to manually launch DesertBusVR.exe from

DBProject/DesertBusVR/Binaries/Win32/DesertBusVR.exe

Start by reviewing steam-638110.log and reproducing the VR-selection failure with Proton 5.0.9. Compare launching through the game’s VR prompt with DBProject/DesertBusVR/Binaries/Win32/DesertBusVR.exe, the reported non-VR workaround. Done means the game no longer closes with OperationNotImplemented when selecting non-VR.