Will do.

On Wed, 21 Sep 2016 at 07:56 Maarten Lankhorst <
maarten.lankhorst@linux.intel.com> wrote:

> Hey,
>
> Op 20-09-16 om 20:45 schreef Mike Lothian:
> > Hi
> >
> > I've bisected back to this commit in the drm-intel-nightly branch
> >
> > 05a76d3d6ad1ee9f9814f88949cc9305fc165460 is the first bad commit
> > commit 05a76d3d6ad1ee9f9814f88949cc9305fc165460
> > Author: Lyude <cpaul@redhat.com>
> > Date:   Wed Aug 17 15:55:57 2016 -0400
> >
> >    drm/i915/skl: Ensure pipes with changed wms get added to the state
> >
> >    If we're enabling a pipe, we'll need to modify the watermarks on all
> >    active planes. Since those planes won't be added to the state on
> >    their own, we need to add them ourselves.
> >
> >    Signed-off-by: Lyude <cpaul@redhat.com>
> >    Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
> >    Cc: stable@vger.kernel.org
> >    Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> >    Cc: Daniel Vetter <daniel.vetter@intel.com>
> >    Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
> >    Cc: Hans de Goede <hdegoede@redhat.com>
> >    Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> >    Link:
> http://patchwork.freedesktop.org/patch/msgid/1471463761-26796-6-git-send-email-cpaul@redhat.com
> >
> > The symptoms I'm seeing look like tearing at the top of the screen and
> > it's especially noticeable in Chrome - reverting this commit makes the
> > issue go away
> >
> > Let me know if you'd like me to raise a bug
> Please do so, it's nice to refer to when making a fix for it.
>
> Could you attach the contents of /sys/kernel/debug/dri/0/i915_ddb_info for
> working and not-working in it?
>
> ~Maarten
>