[Intel-gfx] [PATCH 1/3] drm/i915: Select starting pipe bpp irrespective or the primary plane

[Daniel Vetter]

On Mon, May 4, 2015 at 7:19 PM, Paulo Zanoni <przanoni at gmail.com> wrote:
> It seems the problem is happening because we're now trying 12bpc
> instead of 8bpc, and 12bpc is broken for HDMI. In fact, 12bpc was
> already broken before this patch, the problem is that this patch is
> now trying to use it. It even generates a WARN, so this bug is
> definitely something we can catch with automated systems somehow.

Only when we have a 12bpc capable hdmi screen connected. Those kind of
sink-dependant issues are a big gap in igt, Thomas is working on
injecting fake output screens. With that we can fill in a lot of the
missing testcases and hit all these with automated tests.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch