On Wed, Mar 01, 2017 at 04:07:02PM +0200, Ville Syrjälä wrote:
> On Mon, Feb 20, 2017 at 04:25:45PM +0100, Tomeu Vizoso wrote:
> > Rotel RSX-1058 is a receiver with 4 HDMI inputs and a HDMI output, all
> > 1.1.
> >
> > When a sink that supports deep color is connected to the output, the
> > receiver will send EDIDs that advertise this capability, even if it
> > isn't possible with HDMI versions earlier than 1.3.
> >
> > Currently the kernel is assuming that deep color is possible and the
> > sink displays an error.
> >
> > This quirk will make sure that deep color isn't used with this
> > particular receiver.
> >
> > Fixes: 7a0baa623446 ("Revert "drm/i915: Disable 12bpc hdmi for now"")
> > References: https://bugs.freedesktop.org/show_bug.cgi?id=99869
> > Signed-off-by: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx>
>
> Cc: stable@xxxxxxxxxxxxxxx
> Cc: Matt Horan <matt@xxxxxxxxxxxxx>
> Tested-by: Matt Horan <matt@xxxxxxxxxxxxx>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99869
> Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
And pushed to drm-misc-fixes. Thanks for the patch/testing/bug report
etc.
>
> > ---
> > drivers/gpu/drm/drm_edid.c | 3 +++
> > 1 file changed, 3 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> > index 24e7b282f16c..d994ccf94f88 100644
> > --- a/drivers/gpu/drm/drm_edid.c
> > +++ b/drivers/gpu/drm/drm_edid.c
> > @@ -148,6 +148,9 @@ static const struct edid_quirk {
> >
> > /* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */
> > { "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC },
> > +
> > + /* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/
> > + { "ETR", 13896, EDID_QUIRK_FORCE_8BPC },
> > };
> >
> > /*
> > --
> > 2.9.3
> >
> > _______________________________________________
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> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
>
> --
> Ville Syrjälä
> Intel OTC
> _______________________________________________
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> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Ville Syrjälä
Intel OTC
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