Dash - the background is not updated when showing the desktop while using it

[Kristijan Puljek]

If you open up the dash (either by pressing the super key or by clicking) and then use keyboard to hide all windows (Ctrl-Alt-D by default) while dash is still open, expected behavior is that windows will hide and the transparent area of the dash will reflect that. However, when you hide the windows, the dash background remains the same, and if you repeat the hide windows command a couple more times, different results can be achieved (sometimes you see both the windows and the wallpaper as a watermark over them, sometimes you see the wallpaper while windows are up, sometimes vice versa).

I've reproduced this on both my laptop and my desktop. Using 12.04, last updated today.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.4.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
Uname: Linux 3.2.0-18-generic x86_64
NonfreeKernelModules: fglrx
.tmp.unity.support.test.0:

ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
Date: Sun Mar 11 18:35:25 2012
DistUpgraded: Log time: 2012-03-09 03:06:52.420421
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus:
 fglrx, 8.911, 3.2.0-17-generic, x86_64: installed
 fglrx, 8.911, 3.2.0-18-generic, x86_64: installed
 virtualbox, 4.1.8, 3.2.0-17-generic, x86_64: installed
 virtualbox, 4.1.8, 3.2.0-18-generic, x86_64: installed
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI Manhattan [Mobility Radeon HD 5400 Series] [1002:68e0] (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:0447]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64+mac (20120228.1)
JockeyStatus:
 xorg:fglrx_updates - ATI/AMD proprietary FGLRX graphics driver (post-release updates) (Proprietary, Disabled, Not in use)
 kmod:wl - Broadcom STA wireless driver (Proprietary, Disabled, Not in use) [auto-install]
 xorg:fglrx - ATI/AMD proprietary FGLRX graphics driver (Proprietary, Enabled, In use)
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 001 Device 003: ID 0c45:6480 Microdia Sonix 1.3 MP Laptop Integrated Webcam
MachineType: Dell Inc. Inspiron N5010
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-18-generic root=UUID=797616cf-941a-4325-80df-da6b27baaf22 ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: Upgraded to precise on 2012-03-09 (2 days ago)
dmi.bios.date: 07/26/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 03C6YH
dmi.board.vendor: Dell Inc.
dmi.board.version: A07
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A07
dmi.modalias: dmi:bvnDellInc.:bvrA07:bd07/26/2010:svnDellInc.:pnInspironN5010:pvrA07:rvnDellInc.:rn03C6YH:rvrA07:cvnDellInc.:ct8:cvrA07:
dmi.product.name: Inspiron N5010
dmi.product.version: A07
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu5
version.fglrx-installer: fglrx-installer N/A
version.ia32-libs: ia32-libs 20090808ubuntu33
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.1-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.1-0ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.99.901+git20120126-0ubuntu2
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

[Kristijan Puljek (sampleofsoul)]

Here is a video of it
http://www.youtube.com/watch?v=F6pFcRmJMvI

[Launchpad Janitor (janitor)]

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