Public bug reported:

When I minimize a maximized window and later decide to restore this
window, the top border of that window appears behind the »control bar«
(or whatever you call it, see attached pictures).

The annoying part: the window's contents seem to be on the right place,
but they are drawn by $control_bar_height pixels shifted to the top
(where $control_bar_height is the height of, you guessed, the »control
bar« ;-)).

When I Alt-Tab to another window and Alt-Tab back, the control border
appears. Occasionally, I have seen this behavior in Ubuntu Natty, too.

This bug is reproducible with any application. Screenshots:

1. no application is started: https://assets.dmke.org/1-none-started.png 
(actually, the amount of running applications is irrelevant)
2. starting gnome-terminal: https://assets.dmke.org/2-terminal-started.png
3. maximizing the window: https://assets.dmke.org/3-terminal-maximized.png
4. minimizing the window: https://assets.dmke.org/4-terminal-minimized.png
5. restoring the window: https://assets.dmke.org/5-terminal-restored.png

In the last screen, note the bottom area, where the background shines
through. By clicking there, the terminal window will not lose focus.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: unity 4.24.0-0ubuntu2b1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
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_64 Kernel Module  280.13  Wed Jul 27 16:53:56 
PDT 2011
 GCC version:  gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)
.tmp.unity.support.test.0:
 
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
CompizPlugins: 
[core,bailer,detection,composite,opengl,compiztoolbox,decor,mousepoll,workarounds,imgpng,move,snap,grid,vpswitch,scale,wall,gnomecompat,resize,resizeinfo,regex,place,expo,ezoom,session,staticswitcher,unityshell]
CompositorRunning: compiz
Date: Sat Oct 29 12:50:45 2011
DistUpgraded: Log time: 2011-10-14 00:21:39.630216
DistroCodename: oneiric
DistroVariant: ubuntu
DkmsStatus: nvidia-current, 280.13, 3.0.0-12-generic, x86_64: installed
GraphicsCard:
 nVidia Corporation G98 [GeForce 9300M GS] [10de:06e9] (rev a1) (prog-if 00 
[VGA controller])
   Subsystem: Lenovo Device [17aa:2107]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110426)
JockeyStatus:
 xorg:nvidia_173 - NVIDIA accelerated graphics driver (Proprietary, Disabled, 
Not in use)
 xorg:nvidia_173_updates - NVIDIA accelerated graphics driver (post-release 
updates) (Proprietary, Disabled, Not in use)
 xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, 
Enabled, In use)
 xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release 
updates) (Proprietary, Disabled, Not in use)
MachineType: LENOVO 2746AQG
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic 
root=UUID=27e1e88e-28f9-41ac-a8ec-2517498a9b82 ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: Upgraded to oneiric on 2011-10-13 (15 days ago)
XorgConf:
 Section "Device"
        Identifier      "Default Device"
        Option  "NoLogo"        "True"
 EndSection
dmi.bios.date: 05/29/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 6AET58WW
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: 2746AQG
dmi.board.vendor: LENOVO
dmi.board.version: LENOVO 6AET58WW
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: LENOVO 6AET58WW
dmi.modalias: 
dmi:bvnLENOVO:bvr6AET58WW:bd05/29/2009:svnLENOVO:pn2746AQG:pvrThinkPadSL500:rvnLENOVO:rn2746AQG:rvrLENOVO6AET58WW:cvnLENOVO:ct10:cvrLENOVO6AET58WW:
dmi.product.name: 2746AQG
dmi.product.version: ThinkPad SL500
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu5
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati 
1:6.14.99~git20110811.g93fc084-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:0.0.16+git20110411+8378443-1

** Affects: unity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug compiz-0.9 oneiric running-unity ubuntu

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https://bugs.launchpad.net/bugs/883430

Title:
  Restoring minimized windows causes window border to be behind the
  title bar

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