Commit 9a69b885 authored by Paulo Zanoni's avatar Paulo Zanoni Committed by Daniel Vetter

drm/i915: set the VIC of the mode on the AVI InfoFrame

We currently set "0" as the VIC value of the AVI InfoFrames. According
to the specs this should be fine and work for every mode, so to my
point of view we can't consider the current behavior as a bug. The
problem is that  we recently received a bug report (Kernel bug #50371)
from a user that has an AV receiver that gives a black screen for any
mode with VIC set to 0.

So in order to make at least some modes work for him, this patch sets
the correct VIC number when sending AVI InfoFrames.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=50371Signed-off-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 374a868a
......@@ -340,6 +340,8 @@ static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder,
if (adjusted_mode->flags & DRM_MODE_FLAG_DBLCLK)
avi_if.body.avi.YQ_CN_PR |= DIP_AVI_PR_2;
avi_if.body.avi.VIC = drm_mode_cea_vic(adjusted_mode);
intel_set_infoframe(encoder, &avi_if);
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment