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[Kolia Morev <kolyuchiy@xxxxxxxxx>]

Public bug reported:

This is a regression of Bug #275285. The problem was caused by 965GM not working correctly with framebuffer compression (FBC).
In #275285 the solution was to disable FBC in xserver-xorg-video-intel code on 965GM by default (http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/commit/?id=d24010b7b3f2419beb40dc5ae1e8aeb3e04b5a93) and add UMS option to enable it if needed. Since UMS were removed from Intel drivers and replaced by KMS now there is no user configurable option for FBC anymore. And disabling FBC by default was removed too along with UMS code (http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/commit/?id=b9b159c49854d8d9d2207946bb583537bb0d48d6). KMS enables FBC for this chipset by default and there is no configurable setting that I could find to disable it. The best solution that I could come up with was to rebuild kernel with the attached patch.

Please suggest a better solution if you know one or incorporate this
patch into kernel.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
ProcVersionSignature: Ubuntu 2.6.38-10.44-generic 2.6.38.7
Uname: Linux 2.6.38.7 x86_64
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,resize,compiztoolbox,vpswitch,gnomecompat,place,grid,snap,regex,mousepoll,wall,move,session,imgpng,animation,expo,workarounds,ezoom,staticswitcher,unitymtgrabhandles,fade,scale,unityshell]
CompositorRunning: None
Date: Sun Jun 26 02:28:41 2011
DistUpgraded: Log time: 2011-04-28 21:09:43.211110
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus:
 tp-smapi, 0.40, 2.6.38-10-generic, x86_64: installed 
 tp-smapi, 0.40, 2.6.38.7, x86_64: installed 
 tp-smapi, 0.40, 2.6.38-9-generic, x86_64: installed
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]
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta amd64 (20100901.1)
MachineType: LENOVO 76693JG
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-2.6.38.7 root=UUID=849ef426-c516-4ca2-a7c9-9dae5b14f2ca ro crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7
Renderer: Unknown
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: Upgraded to natty on 2011-04-28 (58 days ago)
dmi.bios.date: 10/09/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7NETC1WW (2.21 )
dmi.board.name: 76693JG
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:bvr7NETC1WW(2.21):bd10/09/2009:svnLENOVO:pn76693JG:pvrThinkPadX61s:rvnLENOVO:rn76693JG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 76693JG
dmi.product.version: ThinkPad X61s
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.4+bzr20110606-0ubuntu1~natty2
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+4ubuntu3.1
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 patch ubuntu

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https://bugs.launchpad.net/bugs/802056

Title:
  [i965gm] Flash, VMWare, SDL apps etc. freeze after few seconds

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