[i915gm] GPU lockup (ESR: 0x00000001 IPEHR: 0x02000004)

[mkis62]

Binary package hint: xserver-xorg-video-intel

a duplicate of #713208 ?
this time happened while try to start Exaile from Cairo Dock (apparently no response) ... then trying to open Terminal from Dock and the display freezes (the mouse pointer still moving, but no response on left/right click or on wheel)

From GPU dump:
ACTHD: 0xffffffff
EIR: 0x00000000
EMR: 0xffffffed
ESR: 0x00000001
PGTBL_ER: 0x00000000
IPEHR: 0x02000004
IPEIR: 0x00000000
INSTDONE: 0x03c7c081
    busy: IDCT
    busy: IQ
    busy: PR
    busy: VLD
    busy: Instruction parser
    busy: Windowizer
    busy: Intermediate Z
    busy: Perspective interpolation
    busy: Texture decompression
    busy: Sampler Cache
    busy: Filtering
    busy: Bypass FIFO
    busy: Pixel shader
    busy: Color calculator
    busy: Map L2

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: xserver-xorg-video-intel 2:2.14.0-1ubuntu6
ProcVersionSignature: Ubuntu 2.6.38-1.28-generic 2.6.38-rc2
Uname: Linux 2.6.38-1-generic i686
Architecture: i386
Chipset: i915gm
CompisitorRunning: None
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1024x768
 edid-base64: AP///////wANrwYVAAAAACgMAQOAHhd4CnfxoFpLliQYT1QACAABAQEBAQEBAQEBAQEBAQEBZBkAQEEAJjAYiDYAMOQQAAAYAAAA/gBOMTUwWDMtTDA3CiAgAAAA/gBDTU8KICAgICAgICAgAAAA/gBOMTUwWDMtTDA3CiAgAOs=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Fri Feb 4 21:31:11 2011
DistUpgraded: Yes, recently upgraded Log time: 2011-01-03 14:04:23.058239
DistroCodename: natty
DistroVariant: ubuntu
DumpSignature: c4e1002d
ExecutablePath: /usr/share/apport/apport-gpu-error-intel.py
GconfCompiz:

GraphicsCard:
 Subsystem: Acer Incorporated [ALI] Device [1025:006a]
   Subsystem: Acer Incorporated [ALI] Device [1025:006a]
InterpreterPath: /usr/bin/python2.7
MachineType: Acer TravelMate 2410
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdline: /usr/bin/python /usr/share/apport/apport-gpu-error-intel.py
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-1-generic root=UUID=263aecd1-0156-49f9-8d5e-99e8079b240f ro gfxpayload=true quiet splash vt.handoff=7
ProcKernelCmdLine_: BOOT_IMAGE=/boot/vmlinuz-2.6.38-1-generic root=UUID=263aecd1-0156-49f9-8d5e-99e8079b240f ro gfxpayload=true quiet splash vt.handoff=7
RelatedPackageVersions:
 xserver-xorg 1:7.6~3ubuntu3
 libdrm2 2.4.23-1ubuntu3
 xserver-xorg-video-intel 2:2.14.0-1ubuntu6
Renderer: Hardware acceleration
SourcePackage: xserver-xorg-video-intel
Title: [i915gm] GPU lockup c4e1002d
UserGroups:

dmi.bios.date: 02/07/2006
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: V1.09
dmi.board.name: Morar
dmi.board.vendor: Acer
dmi.board.version: Rev
dmi.chassis.asset.tag: None
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.09:bd02/07/2006:svnAcer:pnTravelMate2410:pvr0100:rvnAcer:rnMorar:rvrRev:cvnAcer:ct10:cvrN/A:
dmi.product.name: TravelMate 2410
dmi.product.version: 0100
dmi.sys.vendor: Acer
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.23-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10-1ubuntu1
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.13.2+git20110124.fadee040-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-1ubuntu6
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu4