2012/5/23 Daniel Vetter <daniel.vetter at ffwll.ch>: > These are ultra-low-res modes used to upscale SDTV content and we > don't know how to support these on dp on intel hw: > - It's unclear whether we can send avi infoframes over dp ports. > - And the pixel repeat setting that work for hdmi/sdvo explicitly > ?don't work for dp. > > So don't bother and just reject these modes. These modes have been > introduced in > > commit 54ac76f851a1789b047b74a8e14980f2dd1ac749 > Author: Christian Schmidt <schmidt at digadd.de> > Date: ? Mon Dec 19 14:53:16 2011 +0000 > > ? ?drm/edid: support CEA video modes. > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=45729 > Tested-by: Yuang Guang <guang.a.yang at intel.com> > Cc: stable at vger.kernel.org > Signed-Off-by: Daniel Vetter <daniel.vetter at ffwll.ch> Reviewed-by: Paulo Zanoni <paulo.r.zanoni at intel.com> Tested-by: Paulo Zanoni <paulo.r.zanoni at intel.com> Works on my DP monitor. > --- > ?drivers/gpu/drm/i915/intel_dp.c | ? ?6 ++++++ > ?1 file changed, 6 insertions(+) > > diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c > index a1a5ce7..736a3c8 100644 > --- a/drivers/gpu/drm/i915/intel_dp.c > +++ b/drivers/gpu/drm/i915/intel_dp.c > @@ -266,6 +266,9 @@ intel_dp_mode_valid(struct drm_connector *connector, > ? ? ? ?if (mode->clock < 10000) > ? ? ? ? ? ? ? ?return MODE_CLOCK_LOW; > > + ? ? ? if (mode->flags & DRM_MODE_FLAG_DBLCLK) > + ? ? ? ? ? ? ? return MODE_H_ILLEGAL; > + > ? ? ? ?return MODE_OK; > ?} > > @@ -702,6 +705,9 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, > ? ? ? ? ? ? ? ?mode->clock = intel_dp->panel_fixed_mode->clock; > ? ? ? ?} > > + ? ? ? if (mode->flags & DRM_MODE_FLAG_DBLCLK) > + ? ? ? ? ? ? ? return false; > + > ? ? ? ?DRM_DEBUG_KMS("DP link computation with max lane count %i " > ? ? ? ? ? ? ? ? ? ? ?"max bw %02x pixel clock %iKHz\n", > ? ? ? ? ? ? ? ? ? ? ?max_lane_count, bws[max_clock], mode->clock); > -- > 1.7.10 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx at lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Paulo Zanoni
