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 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
