Half-Life: Alyx cannot find headset while in steam linux runtime compatability mode

[Kartoffelsaft]

Your system information

• Steam Runtime Version: steam-runtime_0.20200604.0
• Distribution (e.g. Ubuntu 18.04): Pop!_OS 20.04
• Link to your full system information (Help -> System Information): Gist
• Have you checked for system updates?: Yes
• Are you using the Steam Linux Runtime compatibility tool?: Yes

Please describe your issue in as much detail as possible:

While trying to troubleshoot this issue I figured I'd try to run HL:A in the SLR compatability tool, but when I do I get this error:

SteamVR failed initialization with error code VRInitErropr_Init_HmdNotFoundPresenceFailed: "Hmd Not Found Presence Failed (126)"

Please verify SteamVR is properly installed and try again.

Here is the pressure-vessel.log infodump

Steps for reproducing this issue:

1. Under Half-Life: Alyx's general properties, select "Force the use of a specific Steam Play compatability tool"
2. select Steam Linux Runtime in the dropdown
3. attempt to run the game

[kisak-valve]

Hello @Kartoffelsaft, per "Improved compatibility with the Steam Linux Runtime." in the SteamVR 1.14.9 beta update, please opt into SteamVR's beta branch and retest this issue.

[TTimo]

We need to do more work in the Steam client to take advantage of the SteamVR updates.

[kisak-valve]

Okay, thanks @TTimo.