Bug 111620

Summary:	[regression][bisected] Virtual Reality HMDs fail to power off when SteamVR closes
Product:	DRI	Reporter:	Andres Rodriguez <andresx7>
Component:	DRM/AMDgpu	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED MOVED	QA Contact:
Severity:	major
Priority:	not set	CC:	tele42k3
Version:	unspecified
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Andres Rodriguez 2019-09-09 17:38:30 UTC

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

Comment 1 Martin Peres 2019-11-19 09:51:09 UTC

-- GitLab Migration Automatic Message --

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