From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752772AbcKGLEc (ORCPT ); Mon, 7 Nov 2016 06:04:32 -0500 Received: from mga02.intel.com ([134.134.136.20]:34724 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751297AbcKGLE3 (ORCPT ); Mon, 7 Nov 2016 06:04:29 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,606,1473145200"; d="scan'208";a="783372606" From: Jani Nikula To: Martin Steigerwald , Linus Torvalds Cc: Intel Gfx Mailing List , Linux Kernel Mailing List Subject: Re: [Intel-gfx] [REGRESSION] Linux 4.9-rc4: gfx glitches on Intel Sandybridge (was: Re: Linux 4.9-rc4) In-Reply-To: <2656903.keIazZlQoI@merkaba> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: <2656903.keIazZlQoI@merkaba> Date: Mon, 07 Nov 2016 13:04:16 +0200 Message-ID: <87twbj8sb3.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 06 Nov 2016, Martin Steigerwald wrote: > Hi. > > Am Samstag, 5. November 2016, 16:46:33 CET schrieb Linus Torvalds: >> So it's once again a Saturday afternoon rather than Sunday, this time >> because I felt this rc was already big enough. > > With kernel 4.9-rc4 I saw gfx corruptions like > > https://martin-steigerwald.de/tmp/display-issues-with-kernel-4.9-rc4.png Is this the same issue or a different issue from [1]? Since you mention -rc4, was this introduced in -rc4, or earlier? Please file a bug over at [2]. One issue per bug if this is different from [1]. BR, Jani. [1] http://lkml.kernel.org/r/20161031215454.GB3473@suse.de [2] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel > > in Konversation, Konsole, Akregator and other KDE/Qt related apps up to the > point of not being able to use these applications in a meaningful way. > > I first thought this might be due to upgrading Qt from 5.6.1 to 5.7.1, yet > after rebooting into 4.8 Linux kernel as packaged in Debian I saw no gfx > glitches like that anymore. > > Anything known about this? > > Machine is ThinkPad T520 with Sandybridge graphics. > > Kernel compiled with Debian distro GCC 6 but using no-pie makefile patch. > > Next week and weekend will be pretty busy and this is a production machine, so > bisection or any other time-consuming work on this is out of question for me. > I can provide additional details in case they are easy and quick enough to > obtain. > > > System information (now back on 4.8 kernel): > > # phoronix-test-suite system-info > > Phoronix Test Suite v5.2.1 > System Information > > Hardware: > Processor: Intel Core i5-2520M @ 3.20GHz (4 Cores), Motherboard: LENOVO > 42433WG, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 16384MB, > Disk: 300GB INTEL SSDSA2CW30 + 480GB Crucial_CT480M50, Graphics: Intel 2nd > Generation Core Family IGP, Audio: Conexant CX20590, Monitor: P24T-7 LED, > Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205 > > Software: > OS: Debian unstable, Kernel: 4.8.0-1-amd64 (x86_64), Desktop: KDE Frameworks > 5, Display Server: X Server 1.18.4, Display Driver: modesetting 1.18.4, > OpenGL: 3.3 Mesa 12.0.3, Compiler: GCC 6.2.0 20161103, File-System: btrfs, > Screen Resolution: 3840x1080 > > > # apt-show-versions | egrep "(^libgl1-mesa-dri|^libdrm-intel1|xserver-xorg- > core)" | grep amd64 > libdrm-intel1:amd64/sid 2.4.71-1 uptodate > libgl1-mesa-dri:amd64/sid 12.0.3-3 uptodate > xserver-xorg-core:amd64/sid 2:1.18.4-2 uptodate > > > Excerpt of glxinfo: > > Extended renderer info (GLX_MESA_query_renderer): > Vendor: Intel Open Source Technology Center (0x8086) > Device: Mesa DRI Intel(R) Sandybridge Mobile (0x126) > Version: 12.0.3 > Accelerated: yes > Video memory: 1536MB > Unified memory: yes > Preferred profile: core (0x1) > Max core profile version: 3.3 > Max compat profile version: 3.0 > Max GLES1 profile version: 1.1 > Max GLES[23] profile version: 3.0 > > X.org runs with modesetting driver (default was changed in Debian Sid a while > back). > > Thanks, > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Jani Nikula, Intel Open Source Technology Center