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[Christopher Townsend <christopher.townsend@xxxxxxxxxxxxx>]

Sounds like X may be failing.  After failure, could you switch to a VT
and copy the latest ~/.xsession-errors and then attach it to this bug.
Hopefully, that will a clue.

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https://bugs.launchpad.net/bugs/1229795

Title:
  Unity animations very slow with 3D capable graphics Intel 945

Status in “unity” package in Ubuntu:
  New

Bug description:
  With up to date Saucy, Unity animations are very slow.  For example, hovering over launcher the app tooltip takes three seconds to appear fully and is drawn as a series of images each more opaque that the previous.  Normal operation within an app is ok as is window movement and switching between windows using the mouse.  To draw the shutdown dialog takes many seconds however.  
  I can't see anything unusual in .xsession-errors, syslog or Xorg.0.log
  The result is that the machine is virtually unusable.

  lspci shows graphics as
  00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)

  /usr/lib/nux/unity_support_test -p shows:
  OpenGL vendor string:   Intel Open Source Technology Center
  OpenGL renderer string: Mesa DRI Intel(R) 945GM x86/MMX/SSE2
  OpenGL version string:  2.1 Mesa 9.2.0

  Not software rendered:    yes
  Not blacklisted:          yes
  GLX fbconfig:             yes
  GLX texture from pixmap:  yes
  GL npot or rect textures: yes
  GL vertex program:        yes
  GL fragment program:      yes
  GL vertex buffer object:  yes
  GL framebuffer object:    yes
  GL version is 1.4+:       yes

  Unity 3D supported:       yes

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: unity 7.1.0+13.10.20130920-0ubuntu1
  ProcVersionSignature: Ubuntu 3.11.0-8.15-generic 3.11.1
  Uname: Linux 3.11.0-8-generic i686
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.12.4-0ubuntu1
  Architecture: i386
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  Date: Tue Sep 24 16:20:46 2013
  DistUpgraded: Fresh install
  DistroCodename: saucy
  DistroVariant: ubuntu
  GraphicsCard:
   Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03) (prog-if 00 [VGA controller])
     Subsystem: Toshiba America Info Systems Device [1179:ff10]
     Subsystem: Toshiba America Info Systems Device [1179:ff10]
  InstallationDate: Installed on 2013-07-02 (84 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha i386 (20130701)
  MachineType: TOSHIBA Satellite A100
  MarkForUpload: True
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-8-generic root=UUID=781a6ebb-dfe2-4e11-aa51-685ec625f95b ro quiet splash vt.handoff=7
  SourcePackage: unity
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/23/2006
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: 2.10
  dmi.board.name: MPAD-MSAE Customer Reference Boards
  dmi.board.vendor: Intel Corporation
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 1
  dmi.chassis.vendor: No Enclosure
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr2.10:bd10/23/2006:svnTOSHIBA:pnSatelliteA100:pvrPSAA8E-17V049EN:rvnIntelCorporation:rnMPAD-MSAECustomerReferenceBoards:rvrNotApplicable:cvnNoEnclosure:ct1:cvrN/A:
  dmi.product.name: Satellite A100
  dmi.product.version: PSAA8E-17V049EN
  dmi.sys.vendor: TOSHIBA
  version.compiz: compiz 1:0.9.10+13.10.20130920-0ubuntu1
  version.libdrm2: libdrm2 2.4.46-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.2-1ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.2-1ubuntu2
  version.xserver-xorg-core: xserver-xorg-core 2:1.14.2.901-2ubuntu4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu6
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.14-4ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
  xserver.bootTime: Tue Sep 24 16:19:46 2013
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               51200 
   vendor                                     LPL
  xserver.version: 2:1.14.2.901-2ubuntu4

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