From: "Mihai Donțu" <mihai.dontu@gmail.com>
To: Martin Steigerwald <martin@lichtvoll.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Intel Gfx Mailing List <intel-gfx@freedesktop.org>
Subject: Re: [REGRESSION] Linux 4.9-rc4: gfx glitches on Intel Sandybridge (was: Re: Linux 4.9-rc4)
Date: Sun, 6 Nov 2016 17:25:15 +0200 [thread overview]
Message-ID: <20161106172515.59066c2a@mdontu-l> (raw)
In-Reply-To: <2656903.keIazZlQoI@merkaba>
On Sun, 06 Nov 2016 15:48:36 +0100 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
>
> 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?
https://bugzilla.kernel.org/show_bug.cgi?id=177701
The proposed patch appears to be:
https://patchwork.freedesktop.org/patch/116808/
Have not tested it yet.
> 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).
--
Mihai Donțu
next prev parent reply other threads:[~2016-11-06 15:25 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-05 23:46 Linux 4.9-rc4 Linus Torvalds
2016-11-06 14:48 ` [REGRESSION] Linux 4.9-rc4: gfx glitches on Intel Sandybridge (was: Re: Linux 4.9-rc4) Martin Steigerwald
2016-11-06 15:25 ` Mihai Donțu [this message]
2016-11-06 15:40 ` Martin Steigerwald
2016-11-06 17:50 ` Martin Steigerwald
2016-11-07 11:04 ` [Intel-gfx] " Jani Nikula
2016-11-07 14:29 ` Martin Steigerwald
2016-11-07 17:09 ` Jani Nikula
2016-11-07 22:53 ` Martin Steigerwald
2016-11-08 15:11 ` Martin Steigerwald
2016-11-08 15:17 ` Martin Steigerwald
2016-11-09 8:20 ` Martin Steigerwald
2016-11-09 9:42 ` Jani Nikula
2016-11-09 9:59 ` Martin Steigerwald
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