From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shuang He Subject: Re: 2.6.35-rc6+: i915: Bisected regression Date: Thu, 05 Aug 2010 13:43:04 +0800 Message-ID: <4C5A4F68.5030309@intel.com> References: <201008011101.01429.thomas@m3y3r.de> <4C555DA0.6020109@s5r6.in-berlin.de> <98E20220-BFC9-4231-AEF5-EB59588E6D2F@m3y3r.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <98E20220-BFC9-4231-AEF5-EB59588E6D2F@m3y3r.de> Sender: linux-kernel-owner@vger.kernel.org To: Thomas Meyer Cc: Stefan Richter , "Zou, Nanhai" , Linux Kernel Mailing List , "dri-devel@lists.freedesktop.org" List-Id: dri-devel@lists.freedesktop.org On 2010-8-1 18:51, Thomas Meyer wrote: > Am 01.08.2010 um 13:42 schrieb Stefan Richter: > >> Thomas Meyer wrote: >>> This commit makes suspend to ram unreliable for me: >>> >>> commit d1b851fc0d105caa6b6e3e7c92d2987dfb52cbe0 >>> Author: Zou Nan hai >>> Date: Fri May 21 09:08:57 2010 +0800 >>> >>> drm/i915: implement BSD ring buffer V2 >>> >>> The BSD (bit stream decoder) ring is used for accessing the BSD engine >>> which decodes video bitstream for H.264 and VC1 on G45+. It is >>> asynchronous with the render ring and has access to separate parts of >>> the GPU from it, though the render cache is coherent between the two. >>> >>> Signed-off-by: Zou Nan hai >>> Signed-off-by: Xiang Hai hao >>> Signed-off-by: Eric Anholt >>> >>> git revert didn't work on 2.6.35-rc6 so I just changed the HAS_BSD thing to: >>> >>> #define HAS_BSD(dev) (0) >>> >>> with this change applied suspend to ram is back to the reliability of 2.6.34.y >>> >>> with kind regards >>> thomas >> Added CCs. >> >> Thomas, on what hardware did you observe the regression? > Is a Intel mobile express gm45 chipset. > >> Is it suspend >> or resume that is unreliable? > suspend never finishes/hangs. > >> What are the particular symptoms --- does >> not suspend, crashes during suspend, crashes during resume...? > Does not suspend, backlight is on. Could you help report a bug for this issue by following http://intellinuxgraphics.org/how_to_report_bug.html Thanks --Shuang >> -- >> Stefan Richter >> -=====-==-=- =--- ----= >> http://arcgraph.de/sr/ > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/dri-devel