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[Alex Baggott <alex.baggott@xxxxxxxxx>]

Just tried Test Case #2 and it does happen. However, I couldn't
reproduce Test Case #1 on my machine.

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https://bugs.launchpad.net/bugs/1121941

Title:
  Spread (Super+W) causes maximised windows to resize/repaint and not
  just scale

Status in Unity:
  Triaged
Status in Unity 7.2 series:
  Invalid
Status in compiz package in Ubuntu:
  Invalid
Status in unity package in Ubuntu:
  Confirmed

Bug description:
  Open two windows of an application on Raring
  Press Super+W to enable spread.
  Observe that the windows shrink vertically and repaint when entering spread and re-expand when leaving spread.
  I expect the windows should scale and not repaint or resize when entering or leaving spread.

  Test case #1.
  Start a virtualbox VM (with guest additions enabled so desktop resizing is automatic)
  Maximise the virtualbox window.
  Open a terminal in virtualbox and run the following command:-

  watch xrandr

  This will show the current resolution (which on my 1080p desktop is 1855x1034) - attached max.png
  Enter spread on the host with Super+W
  Observe the guest repainting the desktop
  Wait a second or two for xrandr to display the new resolution (which on my machine goes to 1855x1006 - a reduction of 28px) - attached spread.png
  Exit spread and observe the screen size goes back to what it was before.

  Test case #2
  Open a terminal
  Enter the following command in the terminal
  watch -d -n 0.5 "tput cols && tput lines"
  Maximise the window
  Press Super+W
  Observe the number of lines is reduced by one when switching to spread, and increases back up again when leaving spread.

  
  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: compiz 1:0.9.9~daily13.02.08-0ubuntu1
  ProcVersionSignature: Ubuntu 3.8.0-5.10-generic 3.8.0-rc6
  Uname: Linux 3.8.0-5-generic x86_64
  .tmp.unity.support.test.0:

  ApportVersion: 2.8-0ubuntu4
  Architecture: amd64
  CompizPlugins: [core,composite,opengl,compiztoolbox,decor,grid,imgpng,gnomecompat,scale,workarounds,mousepoll,regex,wall,move,place,vpswitch,resize,unitymtgrabhandles,snap,session,expo,ezoom,unityshell]
  CompositorRunning: compiz
  Date: Mon Feb 11 11:05:19 2013
  DistUpgraded: 2013-01-18 10:34:11,775 DEBUG enabling apt cron job
  DistroCodename: raring
  DistroVariant: ubuntu
  DkmsStatus:
   vboxhost, 4.2.4, 3.2.0-36-generic, x86_64: installed
   vboxhost, 4.2.4, 3.5.0-22-generic, x86_64: installed
   vboxhost, 4.2.4, 3.8.0-3-generic, x86_64: installed
   vboxhost, 4.2.4, 3.8.0-4-generic, x86_64: installed
   vboxhost, 4.2.4, 3.8.0-5-generic, x86_64: installed
  EcryptfsInUse: Yes
  GraphicsCard:
   Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:21da]
  InstallationDate: Installed on 2012-06-29 (226 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: LENOVO 4287CTO
  MarkForUpload: True
  PackageArchitecture: all
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-5-generic root=UUID=c8438547-b9fb-46af-8012-4663c77c70e7 ro quiet splash vt.handoff=7
  SourcePackage: compiz
  UpgradeStatus: Upgraded to raring on 2013-01-18 (23 days ago)
  dmi.bios.date: 12/05/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8DET67WW (1.37 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4287CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr8DET67WW(1.37):bd12/05/2012:svnLENOVO:pn4287CTO:pvrThinkPadX220:rvnLENOVO:rn4287CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4287CTO
  dmi.product.version: ThinkPad X220
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.9~daily13.02.08-0ubuntu1
  version.ia32-libs: ia32-libs 20090808ubuntu36
  version.libdrm2: libdrm2 2.4.42-0ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.2-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.13.2-0ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.0-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.6-0ubuntu2
  xserver.bootTime: Mon Feb 11 09:38:59 2013
  xserver.configfile: default
  xserver.errors:

  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.13.2-0ubuntu2
  xserver.video_driver: intel

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