diff options
authorTomeu Vizoso <tomeu.vizoso@collabora.com>2017-02-20 16:25:45 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2017-03-06 08:28:10 +0100
commit36fc579761b50784b63dafd0f2e796b659e0f5ee (patch)
parentc1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201 (diff)
drm/edid: Add EDID_QUIRK_FORCE_8BPC quirk for Rotel RSX-1058drm-misc-fixes-2017-03-06
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"") Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170220152545.13153-1-tomeu.vizoso@collabora.com Cc: stable@vger.kernel.org Cc: Matt Horan <matt@matthoran.com> Tested-by: Matt Horan <matt@matthoran.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99869 Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index c8baab9bee0d..ba58f1b11d1e 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 },

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