Am Montag, 7. November 2016, 13:04:16 CET schrieb Jani Nikula: > On Sun, 06 Nov 2016, Martin Steigerwald <martin@xxxxxxxxxxxx> 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? Yes, the gfx corruption look similar. So I bet it is the same issue as in [1]. 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.png 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. > Please file a bug over at [2]. One issue per bug if this is different > from [1]. As #177701 seem to have the same corruptions, yet I do not have any merkaba:~#1> zgrep intel_dp_aux_transfer /var/log/kern.log* merkaba:~#1> 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. Thank you, Martin > [1] http://lkml.kernel.org/r/20161031215454.GB3473@xxxxxxx > [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@xxxxxxxxxxxxxxxxxxxxx > > https://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Martin _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
