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Changing the "Broadcast RGB" property does not update the AVI InfoFrame

Submitted by Hans Verkuil

Assigned to Intel GFX Bugs mailing list

Link to original bug (#111572)

Description

Changing the "Broadcast RGB" property while connected to a display will not update the AVI InfoFrame (drm_hdmi_avi_infoframe_quant_range). It does change the video itself, but the AVI InfoFrame is unchanged until you unplug and replug the display.

As far as I can tell, intel_hdmi_compute_avi_infoframe() is only called when something is connected to the HDMI output, and not when relevant properties are changed.

Tested with kernel 5.3-rc4.

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