Skip to content

[Regression][Bisected] output to VR headset fails with "*ERROR* dc_stream_state is NULL for crtc '1'!"

Brief summary of the problem:

Output to the Valve Index Virtual Reality headset fails completely every time with the following errors in the kernel logs:

[   46.815873] [drm:dm_vblank_get_counter [amdgpu]] *ERROR* dc_stream_state is NULL for crtc '1'!
[   46.815996] [drm:dm_crtc_get_scanoutpos [amdgpu]] *ERROR* dc_stream_state is NULL for crtc '1'!
[   46.816083] [drm:dm_vblank_get_counter [amdgpu]] *ERROR* dc_stream_state is NULL for crtc '1'!

I initially encountered this issue moving from Debian's linux-image-5.14.0-4-amd64 to linux-image-5.15.0-1-amd64. Using git bisect, I was able to find the following commit as the source of the issue: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.4&id=61d861cf478576d85d6032f864360a34b26084b1

Hardware description:

  • CPU: AMD Ryzen 9 5950X 16-Core Processor
  • GPU: Radeon RX 6900 XT (2f:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 21 [Radeon RX 6800/6800 XT / 6900 XT] [1002:73bf] (rev c0))
  • System Memory: 32G
  • Display(s): external Full HD monitor, Valve Index
  • Type of Display Connection: DisplayPort

System information:

  • Distro name and Version: Debian testing
  • Kernel version: 5.15.0 and newer

How to reproduce the issue:

  1. Boot
  2. Plug in Valve Index
  3. Launch Steam VR

Attached files:

Log files

  • kern.log from boot to crash on 61d861cf478576d85d6032f864360a34b26084b1: kern.log
Edited by Claire