ubuntu-x-swat team mailing list archive

[Pedro Côrte-Real <pedro@xxxxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-video-intel

After upgrading to natty the screen is now sometimes corrupted. I can't
trigger this with a fixed set of steps yet but it happens most when
switching virtual desktops, coming back from suspend or connecting or
disconnecting an external monitor. It cleans up completely by switching
to the text console and back.

A screenshot is attached of when this happens. The corruption is always
of the form of something not having been refreshed/drawn in, never that
there is something out of place. So sometimes google chrome will lose
some of its decorations or a window won't fully show up after having
been alt-tabbed in. For windows, giving them focus usually causes a
redraw that fixes the corruption. For the panel any element used gets
refreshed but the empty portions will only be refreshed with a vt
switch.

I'm using the classic gnome desktop without compositing. I've noticed it
in google chrome's decorations a lot and that does it's own drawing so
it could be related. I filed this under the intel driver but it could be
a core xserver bug. Would trying unity on the same system help narrow
down the issue?

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
CompositorRunning: None
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1024x768 1024x768 1024x768 800x600 640x480
 edid-base64: AP///////wAwrgBAAAAAAAAPAQOAGRJ46u11kVdPiyYhUFQhCAABAQEBAQEBAQEBAQEBAQEBKBUAQEEAJjAYiDYA9rkAAAAY7RAAQEEAJjAYiDYA9rkAAAAYAAAADwBhQzJhQygPAQBMo1hKAAAA/gBMVE4xMjFYSi1MMDcKAAA=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes: 
 edid-base64:
Date: Thu May 12 19:58:22 2011
DistUpgraded: Log time: 2011-05-07 02:37:19.358886
DistroCodename: natty
DistroVariant: ubuntu
EcryptfsInUse: Yes
GraphicsCard:
 Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) [8086:2a02] (rev 0c) (prog-if 00 [VGA controller])
   Subsystem: Lenovo T61 [17aa:20b5]
   Subsystem: Lenovo T61 [17aa:20b5]
MachineType: LENOVO 7673CR8
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=7e1b8cc5-9055-41c8-bd30-ddde4717884c ro processor.max_cstate=2 quiet splash vt.handoff=7
Renderer: Unknown
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: Upgraded to natty on 2011-05-07 (5 days ago)
dmi.bios.date: 03/12/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7NETC0WW (2.20 )
dmi.board.name: 7673CR8
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr7NETC0WW(2.20):bd03/12/2009:svnLENOVO:pn7673CR8:pvrThinkPadX61:rvnLENOVO:rn7673CR8:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7673CR8
dmi.product.version: ThinkPad X61
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
version.ia32-libs: ia32-libs 20090808ubuntu13
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug natty needs-reassignment regression-update ubuntu

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https://bugs.launchpad.net/bugs/781983

Title:
  Screen becomes corrupted under normal usage