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[Michele Olivo <1075792@xxxxxxxxxxxxxxxxxx>]

I didn't noticed the bug was opened for Ubuntu 12.10, but the problem
also appear in the Beta 2 of Ubuntu 13.10.

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https://bugs.launchpad.net/bugs/1075792

Title:
  Slow Unity 3D performance in 12.10 Quantal Quetzal

Status in Unity:
  Confirmed
Status in “unity” package in Ubuntu:
  Confirmed

Bug description:
  My ThinkPad T43 works quite well with Ubuntu 12.04, but with a clean
  install of 12.10, Unity is slow (I can type in the Unity Dash Home and
  then count the seconds as my letters slowly appear in sequence),
  sometimes freezes (when I close an application, the icon becomes faded
  in the Dash but doesn't disappear, and the application window just
  stays on the screen but I can't interact with it), and text develops
  little lines through it after suspend and resume (this was also
  present in 12.04 and can be fixed with a modification to the
  xorg.conf... something about debug-wait... but it would be nice if I
  didn't have to make that change on the whole batch of T43's I'm going
  to sell).

  Help appreciated :-)

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: xorg 1:7.7+1ubuntu4
  ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
  Uname: Linux 3.5.0-18-generic i686
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.6.1-0ubuntu6
  Architecture: i386
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  Date: Tue Nov  6 18:10:30 2012
  DistUpgraded: Fresh install
  DistroCodename: quantal
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller [8086:2592] (rev 03) (prog-if 00 [VGA controller])
     Subsystem: IBM Device [1014:0582]
     Subsystem: IBM Device [1014:0582]
  InstallationDate: Installed on 2012-11-06 (0 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: IBM 1871W5G
  MarkForUpload: True
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-18-generic root=/dev/mapper/ubuntu-root ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/29/2007
  dmi.bios.vendor: IBM
  dmi.bios.version: 70ET69WW (1.29 )
  dmi.board.name: 1871W5G
  dmi.board.vendor: IBM
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: IBM
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnIBM:bvr70ET69WW(1.29):bd05/29/2007:svnIBM:pn1871W5G:pvrThinkPadT43:rvnIBM:rn1871W5G:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable:
  dmi.product.name: 1871W5G
  dmi.product.version: ThinkPad T43
  dmi.sys.vendor: IBM
  version.compiz: compiz 1:0.9.8.4+bzr3407-0ubuntu1
  version.libdrm2: libdrm2 2.4.39-0ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.0-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.0-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu6
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120913.8637f772-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.9-0ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.2-0ubuntu3

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