On Thu, Feb 27, 2014 at 09:19:30AM -0600, Daniel Drake wrote: > Working with HDMI TVs is a real pain as they tend to overscan by > default, meaning that the pixels around the edge of the framebuffer > are not displayed. This is well explained here: > http://mjg59.dreamwidth.org/8705.html > > There is a bit in the HDMI info frame that can request that the > remote display shows the full pixel data ("underscan"). For the > remote display, the HDMI spec states that this is optional - it > doesn't have to listen. That means that most TVs will probably ignore > this. > > But, maybe there are a handful of TVs for which this would help > the situation. As we live in a digital world, ask the remote > display not to overscan by default. > > Signed-off-by: Daniel Drake <drake@xxxxxxxxxxxx> Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > --- > drivers/gpu/drm/drm_edid.c | 1 + > 1 file changed, 1 insertion(+) > > Replaces the patch titled "video: hdmi: request underscan by default" > This version moves the change to the DRM layer, as requested by > Ville Syrjälä. > > diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c > index b924306..f8d8a1d 100644 > --- a/drivers/gpu/drm/drm_edid.c > +++ b/drivers/gpu/drm/drm_edid.c > @@ -3599,6 +3599,7 @@ drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame, > > frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE; > frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE; > + frame->scan_mode = HDMI_SCAN_MODE_UNDERSCAN; > > return 0; > } > -- > 1.8.3.2 -- Ville Syrjälä Intel OTC _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
