White box behind foreground window after wake from sleep.

[Andrew Myers]

Sometimes after waking from sleep there is a white box behind the foreground window. Rebooting fixes the problem, see the attached screenshot.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity 7.2.0+14.04.20140423-0ubuntu1.2
ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
Uname: Linux 3.13.0-24-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 304.117 Tue Nov 26 21:25:36 PST 2013
 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: [core,composite,opengl,decor,regex,animation,compiztoolbox,mousepoll,place,session,resize,gnomecompat,vpswitch,snap,workarounds,move,imgpng,expo,wall,fade,grid,scale,ezoom,unitymtgrabhandles,unityshell]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Fri May 23 09:35:49 2014
DistUpgraded: 2014-04-19 20:13:50,843 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
GraphicsCard:
 NVIDIA Corporation GF108GLM [Quadro 1000M] [10de:0dfa] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:21cf]
InstallationDate: Installed on 2012-05-25 (727 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MachineType: LENOVO 4270CTO
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/zsh
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic root=UUID=07e2e54a-b825-41cc-9311-834d45db4ed8 ro quiet splash
SourcePackage: unity
UpgradeStatus: Upgraded to trusty on 2014-04-20 (33 days ago)
XorgConf:
 Section "Device"
  Identifier "Default Device"
  Option "RegistryDwords" "EnableBrightnessControl=1"
 EndSection
dmi.bios.date: 01/19/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 8BET56WW (1.36 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4270CTO
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:bvr8BET56WW(1.36):bd01/19/2012:svnLENOVO:pn4270CTO:pvrThinkPadW520:rvnLENOVO:rn4270CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4270CTO
dmi.product.version: ThinkPad W520
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.11+14.04.20140423-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu5
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu5
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: Fri May 23 08:14:05 2014
xserver.configfile: /etc/X11/xorg.conf
xserver.errors:
 open /dev/dri/card0: No such file or directory
 open /dev/fb0: No such file or directory
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.15.1-0ubuntu2