From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [PATCH] i915: disable framebuffer compression on GeminiLake Date: Thu, 09 May 2019 15:33:12 +0300 Message-ID: <87ftpnlsdz.fsf@intel.com> References: <20190423092810.28359-1-jian-hong@endlessm.com> <155613593248.25205.769591454199358982@skylake-alporthouse-com> <15be67b19d898ab74c9ae6d9d9080ef339772e00.camel@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Daniel Drake , Paulo Zanoni Cc: Chris Wilson , Daniel Vetter , David Airlie , Jian-Hong Pan , Joonas Lahtinen , Rodrigo Vivi , intel-gfx@lists.freedesktop.org, dri-devel , Linux Kernel , Linux Upstreaming Team List-Id: intel-gfx@lists.freedesktop.org On Thu, 09 May 2019, Daniel Drake wrote: > Hi, > > > On Thu, Apr 25, 2019 at 4:27 AM Paulo Zanoni wrote: >> >> Em qua, 2019-04-24 às 20:58 +0100, Chris Wilson escreveu: >> > Quoting Jian-Hong Pan (2019-04-23 10:28:10) >> > > From: Daniel Drake >> > > >> > > On many (all?) the Gemini Lake systems we work with, there is frequent >> > > momentary graphical corruption at the top of the screen, and it seems >> > > that disabling framebuffer compression can avoid this. >> > > >> > > The ticket was reported 6 months ago and has already affected a >> > > multitude of users, without any real progress being made. So, lets >> > > disable framebuffer compression on GeminiLake until a solution is found. >> > > >> > > Buglink: https://bugs.freedesktop.org/show_bug.cgi?id=108085 >> > > Signed-off-by: Daniel Drake >> > > Signed-off-by: Jian-Hong Pan >> > >> > Fixes: fd7d6c5c8f3e ("drm/i915: enable FBC on gen9+ too") ? >> > Cc: Paulo Zanoni >> > Cc: Daniel Vetter >> > Cc: Jani Nikula >> > Cc: # v4.11+ >> > >> > glk landed 1 month before, so that seems the earliest broken point. >> > >> >> The bug is well reported, the bug author is helpful and it even has a >> description of "steps to reproduce" that looks very easy (although I >> didn't try it). Everything suggests this is a bug the display team >> could actually solve with not-so-many hours of debugging. >> >> In the meantime, unbreak the systems: >> Reviewed-by: Paulo Zanoni > > Quick ping here. Any further comments on this patch? Can it be applied? Pushed now, thanks. Needed to get a clean CI result, and I dropped the ball a bit there, sorry. BR, Jani. -- Jani Nikula, Intel Open Source Graphics Center