[BUG] Valve Index audio and video cut out.

[ParsleyNeos]

SteamRuntimeSysInfo.txt

Describe the bug
This may be two different bugs. Valve Index + Nvidia graphics + Xubuntu 24.04 on VRChat or Resonite. Primary bug: Within 5 to 10 minutes of starting play on VRChat, headset audio blanks for a few seconds, then recovers. After a couple of minutes it blanks again and recovers. This gets more and more frequent. Secondary bug: After 10 to 15 minutes of playing the headset video goes blank (The PC screen video stays good). Headset video is recoverable by pushing the headset (reset?) button and waiting about 10 seconds then clicking Return To Game. This bug also repeats more and more frequently. Sometimes it recovers on its own. At all times the PC monitor screen shows good video.

To Reproduce
Steps to reproduce the behavior:

1. Power on PC with up-to-date Xubuntu 24.04.4, kernel 6.8.0-124-generic,
   NVIDIA GeForce GTX 1050 with 4.6.0 Nvidea 580.159.03 (Also fails on 530).
   Power on Index headset, lighthouses, controllers.
2. Start SteamVR (Compatability: Default, Game V and B: Beta (or Previous)
   Peripherals panel appears, shows all running. Put on Headset, click on VRChat.
3. VRChat starts, works normally while wandering worlds.
4. See/Hear error: After a few minutes World sound and Player Voices cut out for a few sconds, then return. This cutting out gets more frequent and last longer as time passes. Sometimes it is proceeded by a short (< 1 sec) of severe distortion. (NOTE: if I play on PC only - no headset - the PC audio is fine. This problem is in the headset or its drive.)
   Secondary bug: After 10 or more minutes the video goes blank but is recoverable by pushing the headset (reset?) button and waiting about 10 seconds then clicking Return To Game.
   Also tested on Resonite - audio problem is the same. Was not tested for long, video was OK during the short test.
   Also tested on same hardware but Windows10 OS. The audio worked fine - never blanked but after 10 minutes the headset video became very corrupted, multiple stacked images and RGB separation.

Expected behavior
One expects VRChat to to run with good audio and video, and for several years, up to Feb or March 2026 this hardware + software system did work well.

**System Information:

• Steam client version:
  Steam Beta Branch: Stable Client
  Steam Version: 1782866176
  Steam Client Build Date: Wed, Jun 24, 2026 4:24 PM UTC -08:00

• SteamVR version:
  App ID: 250820
  Build ID: 23899461
  Installed content updated: July 4, 2026 at 11.16 AM

• Distribution:
  Xubuntu 24.04.4

• Steam runtime diagnostics:
  see "SteamRuntimeSysInfo.txt" attached

• Steam and SteamVR logs:
  see "steam-logs.tar.gz" attached

• Minidumps:
  see "steam-minidumps.tar.gz" attached
  Screenshots
  Problem is not visible in screenshot.
  Additional context
  VRChat:
  Compatability Proton HotFix (also 10.0-4 same problem. 11.0 (Beta) fails to run)
  Game V and B Default Public

  Things checked to date: Checked system audio rates - always 48000;
  Headset Cable - bending/moving headset cable and connectors has no effect.

steam-minidumps.tar.gz

steam-logs.tar.gz

SteamRuntimeSysInfo.txt

[ParsleyNeos]

Why was the comment from nonevogama deleted?