Unity Launchpad don't hide

[CrazySky]

In my setting unity launchpad should hide. But sometimes unity launchpad don't hide and still visible.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: compiz-core 1:0.9.11+14.04.20140423-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
Uname: Linux 3.13.0-27-generic x86_64
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Это каталог: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 331.38 Wed Jan 8 19:32:30 PST 2014
 GCC version: gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
.tmp.unity.support.test.0:

ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
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 May 20 12:40:51 2014
DistUpgraded: 2014-04-21 23:26:17,539 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 NVIDIA Corporation GF116 [GeForce GT 640 OEM] [10de:124b] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:231b]
InstallationDate: Installed on 2013-04-26 (389 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: Hewlett-Packard p6-2412er
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-27-generic root=UUID=848218be-207c-4535-affe-0d7e190e4081 ro quiet splash vt.handoff=7
SourcePackage: compiz
UpgradeStatus: Upgraded to trusty on 2014-04-21 (28 days ago)
dmi.bios.date: 07/16/2013
dmi.bios.vendor: AMI
dmi.bios.version: 8.17
dmi.board.name: 2ADA
dmi.board.vendor: Foxconn
dmi.board.version: 1.00
dmi.chassis.asset.tag: RUA30800W0
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnAMI:bvr8.17:bd07/16/2013:svnHewlett-Packard:pnp6-2412er:pvr:rvnFoxconn:rn2ADA:rvr1.00:cvnHewlett-Packard:ct3:cvr:
dmi.product.name: p6-2412er
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.11+14.04.20140423-0ubuntu1
version.ia32-libs: ia32-libs 20090808ubuntu36
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
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 May 20 11:56:06 2014
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.15.1-0ubuntu2