Comment 0 for bug 1301623

Sometimes In Ubuntu 14.04, when I move windows from one workspace to another, Unity freezes, letting me with this 4 workspaces overview. I have to use terminal and restart Unity to resolve it.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity 7.1.2+14.04.20140328.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-18.32~precise1-generic 3.11.10.4
Uname: Linux 3.11.0-18-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.13.3-0ubuntu1
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,dbus]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Wed Apr 2 23:26:06 2014
DistUpgraded: 2014-03-18 07:46:56,695 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [8086:0152] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:365e]
InstallationDate: Installed on 2014-02-10 (51 days ago)
InstallationMedia: Ubuntu 12.04.4 LTS "Precise Pangolin" - Release amd64 (20140204)
MachineType: LENOVO 10104
ProcEnviron:
 LANGUAGE=cs
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=cs_CZ.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-18-generic root=UUID=3a918684-e656-4e86-9b7b-22e0fd6b2135 ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: Upgraded to trusty on 2014-03-18 (15 days ago)
dmi.bios.date: 03/21/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: ELKT31AUS
dmi.board.name: MAHOBAY
dmi.board.vendor: LENOVO
dmi.board.version: 31900003 STD
dmi.chassis.type: 13
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnLENOVO:bvrELKT31AUS:bd03/21/2013:svnLENOVO:pn10104:pvrLenovoC440:rvnLENOVO:rnMAHOBAY:rvr31900003STD:cvnToBeFilledByO.E.M.:ct13:cvrToBeFilledByO.E.M.:
dmi.product.name: 10104
dmi.product.version: Lenovo C440
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.11+14.04.20140328-0ubuntu1
version.ia32-libs: ia32-libs 20090808ubuntu36
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.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: Mon Mar 31 16:48:50 2014
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 8192
 vendor LEN
xserver.version: 2:1.15.0-1ubuntu7