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[Sebastien Bacher <seb128@xxxxxxxxxx>]

Thanks, I can't really see those difference on a intel based laptop with
recent versions though...

** No longer affects: ubuntu-unity-daily-build (Ubuntu)

** No longer affects: compiz (Ubuntu)

** Changed in: unity
   Importance: Undecided => Low

** Changed in: unity (Ubuntu)
   Importance: Undecided => Low

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https://bugs.launchpad.net/bugs/1300892

Title:
  Slow focus switching in Compiz - affects Unity Dash UX

Status in Unity:
  New
Status in unity package in Ubuntu:
  New

Bug description:
  Switching between focused and non-focused window works very slow. It
  ends up with Unity being slower than it should be.

  To reproduce:

  1. Minimize or close EVERY window and open Dash - opens up instantly, animation is smooth.
  2. Open a single window, move it "under" Dash and try to open Dash - animation is a lot slower and it's very choppy. User might think, that it's because window is drawn under the dash and it just eats up resources.
  3. Unfocus the window - by clicking on the empty space of the desktop. Notice that with the window open, animation is still smooth!
  4. Open as many windows as you want and unfocus them - by clicking on the desktop. Animation is still smooth - so it doesn't matter how many windows are open, it's just changing focus.

  This happens because of Unity grabbing active focus from the window.
  Switching focus works very slow, and because of that dash opens
  slowly. This affects for example switching to fullscreen in VLC or
  Totem.

  This is not related to my older graphic card - I can run Crysis 2
  smoothly, but changing focus works bad. Tried drivers from nvidia-
  current to nvidia-331 - works the same on every driver.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: compiz 1:0.9.11+14.04.20140328-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-20.42-generic 3.13.7
  Uname: Linux 3.13.0-20-generic i686
  NonfreeKernelModules: nvidia
  .proc.driver.nvidia.gpus.0: Error: [Errno 21] Jest katalogiem: '/proc/driver/nvidia/gpus/0'
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86 Kernel Module  331.38  Wed Jan  8 18:44:57 PST 2014
   GCC version:  gcc version 4.8.2 (Ubuntu 4.8.2-17ubuntu1)
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14-0ubuntu1
  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
  CurrentDesktop: Unity
  Date: Tue Apr  1 19:00:22 2014
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  DkmsStatus:
   bbswitch, 0.7, 3.13.0-19-generic, i686: installed
   bbswitch, 0.7, 3.13.0-20-generic, i686: installed
   nvidia-331, 331.38, 3.13.0-19-generic, i686: installed
   nvidia-331, 331.38, 3.13.0-20-generic, i686: installed
  GraphicsCard:
   NVIDIA Corporation G92 [GeForce 9800 GT] [10de:0614] (rev a2) (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:8314]
  InstallationDate: Installed on 2014-03-14 (18 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha i386 (20140313)
  MachineType: Gigabyte Technology Co., Ltd. Q35M-S2
  PackageArchitecture: all
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-20-generic root=UUID=713977ac-a79b-4f72-9834-253bbc96a3db ro quiet splash
  SourcePackage: compiz
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/20/2009
  dmi.bios.vendor: Award Software International, Inc.
  dmi.bios.version: F7
  dmi.board.name: Q35M-S2
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.type: 3
  dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
  dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF7:bd04/20/2009:svnGigabyteTechnologyCo.,Ltd.:pnQ35M-S2:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnQ35M-S2:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
  dmi.product.name: Q35M-S2
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.
  version.compiz: compiz 1:0.9.11+14.04.20140328-0ubuntu1
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-1ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-1ubuntu1
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Tue Apr  1 18:32:30 2014
  xserver.configfile: default
  xserver.devices:
   input        Power Button         KEYBOARD, id 6
   input        Power Button         KEYBOARD, id 7
   input         USB OPTICAL MOUSE   MOUSE, id 8
   input        Dell Dell USB Keyboard KEYBOARD, id 9
   input        UVC Camera (046d:0825) KEYBOARD, id 10
  xserver.errors: open /dev/fb0: No such file or directory
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   
  xserver.version: 2:1.15.0-1ubuntu7

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