[Bug 111572] New: 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

            Bug ID: 111572
           Summary: Changing the "Broadcast RGB" property does not update
                    the AVI InfoFrame
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: not set
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: hverkuil at xs4all.nl
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

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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