compiz freezes frequently on i965, needs reboot

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Binary package hint: compiz

After a recent upgrade of xserver-xorg-video-intel (current version 2:2.6.3-0ubuntu9.2) and compiz (current version 1:0.8.2-0ubuntu8.1). My Lenovo X61 laptop freezes every once in a while and needs a reboot to fix. The keyboard gets completely disabled but the mouse moves freely. Following is relevant output from lspci-vv. I have currently disabled compiz. Thanks.

00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
 Subsystem: Lenovo Device 20b5
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Interrupt: pin A routed to IRQ 2298
 Region 0: Memory at f8100000 (64-bit, non-prefetchable) [size=1M]
 Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
 Region 4: I/O ports at 1800 [size=8]
 Capabilities: <access denied>
 Kernel modules: intelfb

00:02.1 Display controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
 Subsystem: Lenovo Device 20b5
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Region 0: Memory at f8200000 (64-bit, non-prefetchable) [size=1M]
 Capabilities: <access denied>

[Robert Ancell (robert-ancell)]

Thanks for your bug report. The symptoms provided indicate this is a problem with your video drivers and is being reassigned to the xorg package. For more information on problems with visual effects and video drivers see http://wiki.ubuntu.com/VisualEffects.

[Bryce Harrington (bryce)]

Hi dakshay,

Please attach the output of `lspci -vvnn`, and attach your /var/log/Xorg.0.log (and maybe Xorg.0.log.old) file from after reproducing this issue. If you've made any customizations to your /etc/X11/xorg.conf please attach that as well.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Bryce Harrington (bryce)]

We're closing this bug since it is has been some time with no response from the original reporter. However, if the issue still exists please feel free to reopen with the requested information. Also, if you could, please test against the latest development version of Ubuntu, since this confirms the bug is one we may be able to pass upstream for help.