[PATCH] drm/edid: add non-desktop quirk to Bigscreen Beyond HMD

[Sefa Eyeoglu]

On Fri, 2024-05-17 at 16:52 +0200, Philipp Zabel wrote:
> On Fr, 2024-05-17 at 16:09 +0200, Sefa Eyeoglu wrote:
> > The Bigscreen Beyond VR headset is a non-desktop output and should
> > be
> > marked as such using an EDID quirk.
> > 
> > Closes https://gitlab.freedesktop.org/drm/misc/kernel/-/issues/39
> 
> From the EDID posted there, it looks like the quirk should not be
> necessary?
> 
> The quoted DisplayID extension block correctly marks this as an HMD:
> 
>   "Display Product Primary Use Case: Head-mounted Virtual Reality
> (VR) display"
> 
> The update_displayid_info() function in drm_edid.c should use this
> information to set the non_desktop flag already. Doesn't this work as
> expected?
> 
> 
> regards
> Philipp

I see.

The only potential reason I can come up with is that the DisplayID
block is incomplete.

$ edid-decode --check
Failures:

Block 0, Base EDID:
  Standard Timings: Missing preferred timing.
EDID:
  DisplayID: Missing DisplayID Product Identification Data Block.
  DisplayID: Missing DisplayID Display Parameters Data Block.
  DisplayID: Missing DisplayID Display Interface Features Data Block.

EDID conformity: FAIL
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