The Lab (450390)

Compatibility Report

• Name of the game with compatibility issues: The Lab
• Steam AppID of the game: 450390

System Information

• GPU: RX 480
• Driver/LLVM version: Mesa 18.3 git
• Kernel version: 4.18.15-gentoo
• Link to full system information report as Gist:
• Proton version: 3.16

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

Under current Proton tracking doesn't work, performance is broken, and the game hangs when trying to do just about anything.

Reproduction

Launch game with SteamVR running.

This game requires the IVRCompositor_017 interface, which currently isn't exposed by the Proton vrclient. With these changes (https://github.com/ValveSoftware/Proton/pull/2075), the game runs and tracks correctly. However, the only areas which load for me are the main Lab hub, Slingshot, and Longbow; everything else hangs the game on loading.

Start with the Proton vrclient and the IVRCompositor_017 interface mentioned in the report, then reproduce the issue by launching The Lab with SteamVR running. Done means tracking works, performance is usable, and the game no longer hangs while loading its other areas.