Comment 38 for bug 727594

What package would that be?

On Wed, Apr 27, 2011 at 9:14 PM, David Coggins <email address hidden>wrote:

> I installed the package from natty proposed replacing the fig package
> yesterday and since then there have been no freezes.
>
> --
> You received this bug notification because you are a direct subscriber
> of a duplicate bug (769862).
> https://bugs.launchpad.net/bugs/727594
>
> Title:
> SRU: [i915gm] GPU lockup (ESR: 0x00000001 IPEHR: 0x02000004)
>
> Status in X.org xf86-video-intel:
> Confirmed
> Status in “linux” package in Ubuntu:
> Invalid
> Status in “xserver-xorg-video-intel” package in Ubuntu:
> Fix Committed
> Status in “linux” source package in Natty:
> Invalid
> Status in “xserver-xorg-video-intel” source package in Natty:
> Fix Committed
>
> Bug description:
> [Impact]
> Severe GPU lockup affecting the i915/i945 family of Intel chips, resulting
> in unrecoverable freeze of graphics, black screen and/or corruption,
> requiring a hard reboot to reset. The issue is widespread amongst these
> cards as evidenced by the large number of dupes; the hardware is common.
> Most users report this is a regression in behavior from maverick.
>
> [Background]
> Subsequent to the code included in maverick, upstream introduced an
> optimization to relax fencing on Intel hardware. This change reduced the
> amount of memory allocated for video buffers. However on older (pre-G33)
> hardware such as i915/i945 this results in increased chances of GPU lockups.
>
> [Fix for Development Version]
> Upstream has opted to disable the relaxed fencing optimization for their
> driver release, and the change is still present in their active upstream git
> tree. Thus, we will be pulling this fix when we update X in oneiric.
>
> [Fix for Stable Version]
> For natty, the attached patch is a backport of the patch that went
> upstream. This patch makes relaxed fencing into an xorg.conf option that
> can be set, and makes it disabled by default for gen < 33 chipsets.
>
> [Steps to Reproduce]
> The freezes typically occur intermittently after some period of use. For
> some people it occurs right at boot, others after minutes or hours of usage.
> Some users find that certain activities such as web browsing makes the
> issue more likely to occur, but others do not find it correlated to any
> particular action.
>
> However, in all cases once the system is frozen, the file
> /sys/kernel/debug/dri/0/i915_error_state will contain an error code
> for the IPEHR value. The exact value appears to vary greatly from hw
> to hw, but common values tend to be either in the 0x02xxxxxx or
> 0x7xxxxxxx range.
>
> With this patch applied, gpu freezes should either go away entirely,
> or become much less frequent. Freezes which still occur but have
> IPEHR values outside these two ranges may be unrelated bugs.
>
> [Regression Potential]
> The patch itself is relatively small and unlikely to introduce regression.
>
> However, this switches optimization paths within the driver. It
> restores us to an older codepath so presumably this will at least be
> as stable as maverick, however the amount of testing this path has
> received on natty is limited. The code is upstream and being tested
> by the wider community and so far has not proven problematic.
>
> Because it is disabling an optimization, it is possible some users of
> older hardware may see performance regress, but should be no worse
> than what was available in maverick.
>
>
> [Original Report]
> As instructed by Bryce I installed the following kernel on my Asus eee pc
> 701 running natty:
> " Please test with the following kernel:
>
> http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/current/ "
>
> by doing sudo dpkg -i linux-image....deb
>
> Then I ran update manager.
>
> After rebooting I browsed with google chrome. The system froze after 5
> minutes.
>
> I rebooted the same kernel and immediately got this problem popup. In
> addition there is font corruption - part of the letter t is missing in
> the browser.
>
> ProblemType: Crash
> DistroRelease: Ubuntu 11.04
> Package: xserver-xorg-video-intel 2:2.14.0-1ubuntu11
> Uname: Linux 2.6.38-999-generic i686
> Architecture: i386
> Chipset: i915gm
> CompizPlugins: No value set for
> `/apps/compiz-1/general/screen0/options/active_plugins'
> CompositorRunning: None
> DRM.card0.LVDS.1:
> status: connected
> enabled: enabled
> dpms: On
> modes: 800x480
> edid-base64:
> DRM.card0.VGA.1:
> status: connected
> enabled: enabled
> dpms: On
> modes: 1680x1050 1280x1024 1280x1024 1280x960 1152x864 1024x768 1024x768
> 1024x768 832x624 800x600 800x600 800x600 800x600 640x480 640x480 640x480
> 640x480 720x400
> edid-base64:
> AP///////wBMLX4CMjJFTQ4RAQMOLx54KtUVpFVJmicUUFS/74CzAIGAgUBxTwEBAQEBAQEBfC6QoGAaHkAwIDYA2igRAAAaAAAA/QA4Sx5RDgAKICAgICAgAAAA/ABTeW5jTWFzdGVyCiAgAAAA/wBIOU5QNDAwMTk3CiAgAM8=
> Date: Wed Mar 2 15:23:13 2011
> DistUpgraded: Yes, recently upgraded Log time: 2011-02-17 19:00:58.983764
> DistroCodename: natty
> DistroVariant: ubuntu
> DumpSignature: c38b9ae8 (ESR: 0x00000001 IPEHR: 0x02000004)
> ExecutablePath: /usr/share/apport/apport-gpu-error-intel.py
> GraphicsCard:
> Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller
> [8086:2592] (rev 04) (prog-if 00 [VGA controller])
> Subsystem: ASUSTeK Computer Inc. Device [1043:82d9]
> Subsystem: ASUSTeK Computer Inc. Device [1043:82d9]
> InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110202)
> InterpreterPath: /usr/bin/python2.7
> MachineType: ASUSTeK Computer INC. 701
> ProcCmdline: /usr/bin/python /usr/share/apport/apport-gpu-error-intel.py
> ProcEnviron:
>
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-999-generic
> root=UUID=3893e3fd-c2b4-40ec-9810-5a9aba86cbd4 ro
> crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7
> ProcKernelCmdLine_: BOOT_IMAGE=/boot/vmlinuz-2.6.38-999-generic
> root=UUID=3893e3fd-c2b4-40ec-9810-5a9aba86cbd4 ro
> crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7
> RelatedPackageVersions:
> xserver-xorg 1:7.6~3ubuntu8
> libdrm2 2.4.23-1ubuntu3
> xserver-xorg-video-intel 2:2.14.0-1ubuntu11
> Renderer: Unknown
> SourcePackage: xserver-xorg-video-intel
> Title: [i915gm] GPU lockup c38b9ae8 (ESR: 0x00000001 IPEHR: 0x02000004)
> UpgradeStatus: Upgraded to natty on 2011-02-24 (5 days ago)
> UserGroups:
>
> dmi.bios.date: 05/04/2008
> dmi.bios.vendor: American Megatrends Inc.
> dmi.bios.version: 1001
> dmi.board.asset.tag: To Be Filled By O.E.M.
> dmi.board.name: 701
> dmi.board.vendor: ASUSTeK Computer INC.
> dmi.board.version: x.xx
> dmi.chassis.asset.tag: 0x00000000
> dmi.chassis.type: 10
> dmi.chassis.vendor: ASUSTek Computer INC.
> dmi.chassis.version: x.x
> dmi.modalias:
> dmi:bvnAmericanMegatrendsInc.:bvr1001:bd05/04/2008:svnASUSTeKComputerINC.:pn701:pvrx.x:rvnASUSTeKComputerINC.:rn701:rvrx.xx:cvnASUSTekComputerINC.:ct10:cvrx.x:
> dmi.product.name: 701
> dmi.product.version: x.x
> dmi.sys.vendor: ASUSTeK Computer INC.
> version.compiz: compiz 1:0.9.4-0ubuntu3
> version.libdrm2: libdrm2 2.4.23-1ubuntu3
> version.libgl1-mesa-glx: libgl1-mesa-glx
> 7.10.1~git20110215.cc1636b6-0ubuntu2
> version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu8
> version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu2
> version.xserver-xorg-video-intel: xserver-xorg-video-intel
> 2:2.14.0-1ubuntu11
> version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
> 1:0.0.16+git20110107+b795ca6e-0ubuntu5
>
> [lspci]
> Nux: lspci: 00:02.0 VGA compatible controller [0300]: Intel Corporation
> Mobile 915GM/GMS/910GML Express Graphics Controller [8086:2592] (r
>
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>