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[BUG] vrcompositor crashes when Index refresh rate is set to 144 #893

@Zoarial94

Description

@Zoarial94

Describe the bug
Launching SteamVR with a Value Index configured for 144hz causes. 60hz and 120hz have no issues.

To Reproduce

  1. Edit steamvr.vrsettings and set preferredRefreshRate to 144
  2. Launch SteamVR
  3. Witness vrcompositor instantly crash with SEGV (11)

Expected behavior
SteamVR launches normally

System Information (please complete the following information):
Please use the latest Steam beta client and SteamVR beta for your bug reports!

  • Steam client version (build number or date): 1777686219 (Current beta as of May 1st)

  • SteamVR version: 2.16.4 (Current beta)

  • Distribution (e.g. Ubuntu): Fedora 44

  • Steam runtime diagnostics: steam-runtime-info.txt

  • Steam and SteamVR logs: steam-logs.tar.gz

  • Minidumps: steam-logs.tar.gz

Screenshots

Image

Additional context
I have tried to downgrade my mesa drivers to 25.3.6, but I am unsure if steamvr actually used them. The crash report always mentions Module libVkLayer_MESA_device_select.so from rpm mesa-26.0.5-3.fc44.x86_64.

This was not an issue +1 years ago (unsure the exact date I last used my headset). My headset was always finicky and I gave up on it for a while due to the unreliability of it. After resetting my config while troubleshooting, the experience has been really solid so far.

I currently have two monitors connected, 1x 60hz 1080p, and 1x 175hz gsync/freesync 1440p ultrawide. Disconnecting the ultrawide did not resolve the issue either. I am happy to troubleshoot more, but I just need some direction. Thanks!

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