X freezes after some time after enabling Compiz effects

[Shein Alexey]

Binary package hint: xserver-xorg-video-intel

I've found similar bugs, but according to some developer comment in there I decided to report a new bug since it's more comfortable for them.
After enabling Compiz effects the system behave sometime normally but then suddenly freezes (maybe on selection text with mouse).

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: xserver-xorg-video-intel 2:2.12.0-1ubuntu5
ProcVersionSignature: Ubuntu 2.6.32-25.44-generic 2.6.32.21+drm33.7
Uname: Linux 2.6.32-25-generic i686
Architecture: i386
DRM.card0.VGA.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1280x1024 1280x1024 1280x960 1152x864 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 640x480 640x480 640x480 640x480 720x400
 edid-base64: AP///////wBMLSsCNzFKTTERAQNsIht4KtxVo1lIniQRUFS/74CBgHFPgUABAQEBAQEBAQEBMCoAmFEAKkAwcBMAUg4RAAAeAAAA/QA4Sx5RDgAKICAgICAgAAAA/ABTeW5jTWFzdGVyCiAgAAAA/wBIOUZQQzEyMzIxCiAgAIk=
Date: Wed Oct 13 16:36:38 2010
DkmsStatus:
 virtualbox-ose, 3.2.8, 2.6.32-25-generic, i686: installed
 virtualbox-ose, 3.2.8, 2.6.35-22-generic, i686: installed
MachineType: ECS 945GCT-M2
ProcCmdLine: root=UUID=028d8e13-64a9-45ee-bf0f-aa17690a3112 ro splash noresume vga=795
ProcEnviron:
 LANGUAGE=ru_RU:ru:en_GB:en
 PATH=(custom, user)
 LANG=ru_RU.utf8
 SHELL=/bin/bash
SourcePackage: xserver-xorg-video-intel
dmi.bios.date: 09/17/2007
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080012
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: 945GCT-M2
dmi.board.vendor: ECS
dmi.board.version: ECS
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: ECS
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080012:bd09/17/2007:svnECS:pn945GCT-M2:pvr1.x:rvnECS:rn945GCT-M2:rvrECS:cvnECS:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: 945GCT-M2
dmi.product.version: 1.x
dmi.sys.vendor: ECS
system:
 distro: Ubuntu
 codename: maverick
 architecture: i686
 kernel: 2.6.32-25-generic

[Ximarx (ximarx)]

I've exactly the same problem, but i have a ati radeon mobile 9600

[Shein Alexey (confik)]

Ximarx, you should report your problem separately, because this bug relates to xserver-xorg-video-intel package.

[Shein Alexey (confik)]

Anybody here?

[Bryce Harrington (bryce)]

Hi,

Thanks for reporting this X gpu lockup bug in Ubuntu maverick.

In my opinion GPU lockups are one of the most frustrating kinds of bugs, both as a user and a developer. I want take a few moments of your time to explain the situation with these types of bugs.

For some reason, -intel has been plagued with these freeze bugs for a long time. In the past -intel has had options to switch to legacy memory or rendering technologies as workarounds, but Intel tends to drop obsolete code pretty aggressively and unfortunately in maverick these workarounds are not available.

As a policy, Intel engineers look only at bugs that are seen in the most recent release of their drivers. With older versions of their drivers, such as the version in maverick, we're on our own.

On the plus side, they provide good tools for gathering debug data about the bugs, such as the intel_gpu_dump too. Unfortunately, the version of Apport in maverick doesn't capture the dmesg or X logs correctly (it collects the files at the time of freeze, but then overwrites them with clean, unhelpful versions when it goes to file the report for you.)

The version of these diagnostic tools in natty has been fixed up, and is allowing us to analyze GPU lockups a lot easier. This has helped us solve several of the bugs, and given us a handle on some of the more challenging ones.

Backporting these fixes may not be feasible though; by their nature the fixes for these type of bugs tend to be very low level, esoteric, and risky of causing something else to regress. Because the freezes are often hard to reproduce, it's not always possible to verify fixes anyway. It may be that our best bet is to focus on natty.

But for now, since these freezes typically require kernel patches to solve, I'm moving your bug report to the kernel package. They may be able to point you to a newer kernel likely to help with this issue.

[Shein Alexey (confik)]

Thanks for answering. Is there a chance that this will be fixed in the next release?

[Jeremy Foshee (jeremyfoshee)]

Hi Shein,

If you could also please test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

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