https://bugs.freedesktop.org/show_bug.cgi?id=111620
Bug ID: 111620
Summary: [regression][bisected] Virtual Reality HMDs fail to
power off when SteamVR closes
Product: DRI
Version: unspecified
Hardware: Other
OS: All
Status: NEW
Severity: major
Priority: not set
Component: DRM/AMDgpu
Assignee: dri-devel@lists.freedesktop.org
Reporter: andre...@gmail.com
When SteamVR is closed the attached HMD no longer powers off. This is due to
the display still being driven by the GPU.
The first bad commit for this behaviour is:
"drm/amd/display: Allow commits with no planes active"
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=bc92c06525e5865c94256ef0227bfe870c095823
My understanding is that the commit above does fix a bug in amdgpu/dc. However,
due to current Xorg versions failing to shut down outputs after re-claiming a
drm lease, this commit ends up breaking userspace.
Following is the x server patch to help illustrate what X is doing incorrectly:
https://gitlab.freedesktop.org/xorg/xserver/merge_requests/279
Additional reference:
https://github.com/ValveSoftware/SteamVR-for-Linux/issues/235
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