Hi Is there any chance this could be removed from the upcoming drm-4.9 pull, at least until this issue has been fixed
Regards Mike On 21 September 2016 at 12:34, Mike Lothian <mike at fireburn.co.uk> wrote: > I've raised https://bugs.freedesktop.org/show_bug.cgi?id=97888 I'll > attach the info you requested once I get back to my machine > > On 21 September 2016 at 07:56, Maarten Lankhorst > <maarten.lankhorst at 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 at 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 at redhat.com> >>> Reviewed-by: Matt Roper <matthew.d.roper at intel.com> >>> Cc: stable at vger.kernel.org >>> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com> >>> Cc: Daniel Vetter <daniel.vetter at intel.com> >>> Cc: Radhakrishna Sripada <radhakrishna.sripada at intel.com> >>> Cc: Hans de Goede <hdegoede at redhat.com> >>> Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com> >>> Link: >>> http://patchwork.freedesktop.org/patch/msgid/1471463761-26796-6-git-send-email-cpaul >>> at 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
