[Bug 111572] Changing the "Broadcast RGB" property does not update the AVI InfoFrame

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111572

Lakshmi <lakshminarayana.vudum at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Whiteboard|                            |Triaged
      i915 platform|                            |KBL
                 CC|                            |shashank.sharma at intel.com,
                   |                            |swati2.sharma at intel.com
      i915 features|                            |display/LSPCON
             Status|NEEDINFO                    |NEW

--- Comment #4 from Lakshmi <lakshminarayana.vudum at intel.com> ---
(In reply to Ville Syrjala from comment #3)
> (In reply to Hans Verkuil from comment #2)
> > Created attachment 145322 [details]
> > Log with drm.debug=0x1e when setting Broadcast RGB
> > 
> > Attached is prop.log. I added a pr_info in
> > intel_digital_connector_atomic_set_property() when the Broadcast RGB
> > property changes ("HV: set broadcast_rgb to 1").
> > 
> > Note that I'm testing on an Intel NUC7i5BNB where DP-1 is a DP-to-HDMI
> > branch device (MegaChips 2800). So it is not a native HDMI device.
> > 
> > I'm happy to test more if needed.
> 
> Ah LSPCON. Yeah that's probably borked because we have no readout and hence
> the infoframe state checker isn't hooked up either, and so the code doesn't
> realize it needs a full modeset to update the infoframe. Not the only
> problem in the LSPCON code unfortunately.

Swati/Shshank, Latest/upcoming FW will help here?

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