Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753042AbcKIIVc convert rfc822-to-8bit (ORCPT ); Wed, 9 Nov 2016 03:21:32 -0500 Received: from mondschein.lichtvoll.de ([194.150.191.11]:47471 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751817AbcKIIVb (ORCPT ); Wed, 9 Nov 2016 03:21:31 -0500 From: Martin Steigerwald To: intel-gfx@lists.freedesktop.org Cc: Jani Nikula , Intel Gfx Mailing List , Linus Torvalds , Linux Kernel Mailing List Subject: Re: [Intel-gfx] [REGRESSION] Linux 4.9-rc4: gfx glitches on Intel Sandybridge (was: Re: Linux 4.9-rc4) Date: Wed, 09 Nov 2016 09:20:31 +0100 Message-ID: <2133270.BvWHEGSr0T@merkaba> User-Agent: KMail/5.2.3 (Linux/4.8.0-1-amd64; KDE/5.27.0; x86_64; ; ) In-Reply-To: <3409292.hOGaBhKxQ4@merkaba> References: <2628657.kfrL36kGVH@merkaba> <3409292.hOGaBhKxQ4@merkaba> MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2720 Lines: 73 Am Dienstag, 8. November 2016, 16:17:59 CET schrieb Martin Steigerwald: > Am Dienstag, 8. November 2016, 16:11:31 CET schrieb Martin Steigerwald: > > Am Montag, 7. November 2016, 19:09:36 CET schrieb Jani Nikula: > > > On Mon, 07 Nov 2016, Martin Steigerwald wrote: > > > > It is also the same kind of corruptions as shown in > > > > > > > > [Bug 177701] warning in intel_dp_aux_transfer > > > > https://bugzilla.kernel.org/show_bug.cgi?id=177701 > > > > > > > > Just compare > > > > > > > > https://bugzilla.kernel.org/attachment.cgi?id=241801 > > > > > > > > with > > > > > > > > https://martin-steigerwald.de/tmp/display-issues-with-kernel-4.9-rc4.p > > > > ng > > > > > > > > > > > > However that bug report links to > > > > > > > > https://bugs.freedesktop.org/show_bug.cgi?id=97344 > > > > > > > > yet the patch mentioned in there does not fix the issue. So I wonder > > > > whether bug #97344 and bug #177701 are really the same. > > > > > > They are the same, it's just that #177701 conflates two issues, a > > > warning (tracked at fdo #973449) and a graphics corruption. The latter > > > appears to be https://bugs.freedesktop.org/show_bug.cgi?id=98402. > > > > > > The fix has now been pushed to drm-intel-fixes branch of > > > http://cgit.freedesktop.org/drm-intel, which is -rc4 plus half a dozen > > > latest fixes. Please try that and report back. > > > > For now commit 54905ab5fe7aa453610e31cec640e528aaedb2e2 of drm-intel-fixes > > I ment not exactly this commit, but this is the last commit in the branch as > I compiled the kernel. > > > branch seems to work okay. I can only test with laptop display at the > > moment. But I will test with external display this evening – in case the > > issue at hand is DisplayPort related. Also no graphics glitches with external DisplayPort connected display. *However*, I got a soft freeze and a hard freeze (well after about a minute I gave up and rebooted by pressing power button long enough to forcefully switch off the laptop) when playing PlaneShift using drm-intel-fixes branch. Unfortunately I have no further time to debug any of this week, but it seems not all fixes are there are ready for next stable kernel. Ciao, Martin > > I will add this information to fdo bug 98402 as well. > > > > Thanks, > > Martin > > > > > > Of course I can report a bug at fdo as well, but I am a bit confused > > > > whether it may not already have been reported. Well I hope I get a > > > > chance to report it there as well and you get to decide. > > > > > > If drm-intel-fixes doesn't fix the issue for you, please file a *new* > > > bug over at the freedesktop.org bugzilla. > > > > > > BR, > > > Jani. -- Martin