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[Christopher Townsend <christopher.townsend@xxxxxxxxxxxxx>]

Since no one responded to Andrea's inquiry on 2015-01-17 and Ubuntu
12.10 is out of support, I'm going to surmise this was fixed somewhere
along the way.

If it still does occur, we can either reopen this bug or open a new one.

** Changed in: unity
       Status: Incomplete => Fix Released

** Changed in: unity (Ubuntu)
       Status: Incomplete => Fix Released

** Changed in: unity
    Milestone: 7.3.3 => None

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https://bugs.launchpad.net/bugs/1067547

Title:
  Unity in 12.10 becomes unusably slow after using Alt-Tab to switch
  between programs (nvidia)

Status in Unity:
  Fix Released
Status in unity package in Ubuntu:
  Fix Released

Bug description:
  Not sure what else to say. On my laptop with a clean 12.10
  installation everything works great. On my desktop with an Nvidia
  gts250 card (all available drivers in the repo) unity works fine, but
  after I use alt-tab to switch between applications, compiz memory
  usage rises (20, 50, 100mb, depends on... well, something?) and dash,
  all effects and even window dragging becomes unbearably slow.

  After I do a "unity --replace", everything is fine until I use alt-tab
  again. I can reproduce this as many times as I want.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: unity 6.8.0-0ubuntu2
  ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
  Uname: Linux 3.5.0-17-generic i686
  NonfreeKernelModules: nvidia
  .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86 Kernel Module  304.51  Tue Sep 18 17:36:24 PDT 2012
   GCC version:  gcc version 4.7.2 (Ubuntu/Linaro 4.7.2-2ubuntu1)
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.6.1-0ubuntu3
  Architecture: i386
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  Date: Wed Oct 17 01:12:10 2012
  DistUpgraded: Fresh install
  DistroCodename: quantal
  DistroVariant: ubuntu
  DkmsStatus: nvidia-current-updates, 304.51, 3.5.0-17-generic, i686: installed
  GraphicsCard:
   NVIDIA Corporation G92 [GeForce GTS 250] [10de:0615] (rev a2) (prog-if 00 [VGA controller])
     Subsystem: Giga-byte Technology Device [1458:34c7]
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Beta i386 (20120926)
  MachineType: System manufacturer System Product Name
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-17-generic root=UUID=cad55f8d-5c9a-45ee-9ed1-a26e67b985ae ro quiet splash
  SourcePackage: unity
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/15/2009
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0604
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: M4A79XTD EVO
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev X.0X
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0604:bd09/15/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A79XTDEVO:rvrRevX.0X:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer
  version.compiz: compiz 1:0.9.8.4-0ubuntu2
  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.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  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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