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[Launchpad Bug Tracker <982263@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 874619 ***
    https://bugs.launchpad.net/bugs/874619

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: unity (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/982263

Title:
  unity window resize / movement extreme slow multimonitor

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

Bug description:
  Symptom/Occurance:
  This slow window resize/movement behaviour will not occur when logged into a "lxde" or "gnome(classis)" session on the same machine. But in a unity or unity-2d session, apps like Nautilus, pcmanfm or firefox or chromium-browser the bigger these application windows get, the harder they seem to move or resize especially on a multimonitor setup it becomes incredibly slow.

  Affected manufacturers:
  After some googling and looking at youtube movies and other ubuntu releases with "unity" I see it doesn't matter which video manufacture is used al be it Nvidia, Intel or AMD/ATI closed or opensource driver, but in case of using the ATi frglx driver it can be worse than it is already now, but some tweaks in CompizSettingsmanager like "quality, vsync, refreshrate" will improve the performace BUT NOT in this scenario in which I'm writing the bug report for.

  Packages:
  I cannot say if it is unity or compiz, both of them or something else. But other desktop sessions do not seem to be affected. Unless I run LXDE and start unity or unity-2d-shell on top of it, than it becomes as slow and sluggish as unity(2d) itself.

  Regression?
  I'm running a test setup from the beginning of 12.04 LTS and this annoying behavior has been there from the beginning, until a month ago it seems to be fixed. Running on a multimonitor setup with opensource driver reacted and responded incredibly snappy, even until compiz 0.9.7.4 update last week but, after the update of compiz 0.9.7.6 this weekend it was back sluggish and slow again. I will try to figure it out more exactly.

  Possible Fix?
  I do have a daily live iso image of ubuntu 12.04 LTS but don't know from which day, but it doesn't show this SLOW/buggy behavior until you logout and login again back to its default live session and than performance becomes slow again.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: unity 5.10.0-0ubuntu3
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  Uname: Linux 3.2.0-23-generic x86_64
  .tmp.unity.support.test.0:

  ApportVersion: 2.0.1-0ubuntu3
  Architecture: amd64
  CompizPlugins: [core,composite,opengl,decor,imgpng,unitymtgrabhandles,place,workarounds,session,grid,expo,gnomecompat,compiztoolbox,resize,scale,vpswitch,mousepoll,ezoom,regex,move,wall,unityshell]
  CompositorRunning: compiz
  CurrentDmesg:
   [   38.505673] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
   [   49.504007] eth0: no IPv6 routers present
   [ 1262.164016] usb 1-5: reset high-speed USB device number 3 using ehci_hcd
  Date: Sun Apr 15 13:15:26 2012
  DistUpgraded: Fresh install
  DistroCodename: precise
  DistroVariant: ubuntu
  DkmsStatus:
   virtualbox, 4.1.12, 3.2.0-21-generic, x86_64: installed
   virtualbox, 4.1.12, 3.2.0-22-generic, x86_64: installed
   virtualbox, 4.1.12, 3.2.0-23-generic, x86_64: installed
  GraphicsCard:
   Advanced Micro Devices [AMD] nee ATI RV630 [Radeon HD 2600XT] [1002:9588] (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:01c4]
  MachineType: System manufacturer P5K-E
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=1ba52055-30cd-4f0b-bd47-83ebf7135b66 ro quiet splash vt.handoff=7
  SourcePackage: unity
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/08/2008
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1202
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: P5K-E
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1202:bd09/08/2008:svnSystemmanufacturer:pnP5K-E:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5K-E:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: P5K-E
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer
  version.compiz: compiz 1:0.9.7.6-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.32-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

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