[Bug 774811] vaapi: cannot open driver in a headless environment

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=774811

Víctor Manuel Jáquez Leal <vjaquez at igalia.com> changed:

           What    |Removed                     |Added
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             Status|NEEDINFO                    |ASSIGNED

--- Comment #11 from Víctor Manuel Jáquez Leal <vjaquez at igalia.com> ---
(In reply to Reza Razavi from comment #10)
> This will not make any change, maybe I should give a brief about the
> hardware setup, It uses Intel igpu as default graphic card and Nvidia card
> as a secondary one, Intel wil come up as card0 and renderD128, Nvidia card
> is coming as card1 and renderD129. I have just installed libva Intel drivers
> as we intend to use that card with VAAPI.
> I found out in get_default_device_path function in gstvaapidisplay_drm.c
> it's just giving card1 for legacy in first try and renderD129 as RENDERNODES
> in second try and as it has no driver it will fail.
> If the function was trying card0 or renderD128 vaapi would successfully find
> the driver. 

That makes sense. We haven't tested the element in a hybrid graphics setup. And
we should. Maybe a try-and-error when DRM.

If you could make a patch in that way would be awesome.

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