Public bug reported:

The Unity Dock application mouse over labels are distorted or choppy after new 
unity or compiz update 
This bug is from Unity and perhaps Compiz.

It is a issue with the Unity Dock/ Launcher

I've been running Ubuntu 12.04 since release,

But recently the Dock applications mouse over labels  have become
distorted or choppy

I'm thinking this occurred after a new unity or compiz update that was
issued recently.  As It was not happening before...

This issue occurs on: 
A Desktop with Nvidia Proprietary Graphics  
A Laptop with Intel GMA950 
A Laptop with Intel HD3000

Steps to reproduce:
Update the the latest packages (VIA Update Manager)
Reboot
Mouse over some dock applications and label is distorted.

I can confirm this is with any size dock. See screen-shot.

I'd be interested to know this this effects anyone else. Thanks for your
time. (See screenshot  for the highlighted issue area)

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.14.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
Uname: Linux 3.2.0-29-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  295.49  Mon Apr 30 23:46:33 
PDT 2012
 GCC version:  gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
.tmp.unity.support.test.0:
 
ApportVersion: 2.0.1-0ubuntu12
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: Wed Aug 22 15:48:26 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus:
 nvidia-current-updates, 295.49, 3.2.0-26-generic, x86_64: installed
 nvidia-current-updates, 295.49, 3.2.0-29-generic, x86_64: installed
GraphicsCard:
 NVIDIA Corporation GF106 [GeForce GTS 450] [10de:0dc4] (rev a1) (prog-if 00 
[VGA controller])
   Subsystem: NVIDIA Corporation Device [10de:085a]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 
(20120425)
JockeyStatus:
 xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, 
Disabled, Not in use)
 xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release 
updates) (Proprietary, Enabled, In use)
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 002: ID 050d:705a Belkin Components F5D7050 Wireless G Adapter 
v3000 [Ralink RT2571W]
 Bus 001 Device 003: ID 1307:0330 Transcend Information, Inc. 63-in-1 
Multi-Card Reader/Writer
 Bus 002 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
MachineType: eMachines ET1331G
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic 
root=UUID=ef72c780-4fc6-47bc-9a34-5cdc61df3d2d ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
XorgConf:
 Section "Device"
        Identifier      "Default Device"
        Option  "NoLogo"        "True"
         Option "Coolbits" "5"
 EndSection
dmi.bios.date: 08/13/2009
dmi.bios.vendor: AMI
dmi.bios.version: P01-A0
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: MCP61PM-GM
dmi.board.vendor: eMachines
dmi.chassis.type: 3
dmi.chassis.vendor: eMachines
dmi.modalias: 
dmi:bvnAMI:bvrP01-A0:bd08/13/2009:svneMachines:pnET1331G:pvr:rvneMachines:rnMCP61PM-GM:rvr:cvneMachines:ct3:cvr:
dmi.product.name: ET1331G
dmi.sys.vendor: eMachines
version.compiz: compiz 1:0.9.7.8-0ubuntu1.4
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.3+8.0.2-0ubuntu3.2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.3+8.0.2-0ubuntu3.2
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2
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 2:2.17.0-1ubuntu4.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:0.0.16+git20111201+b5534a1-1build2

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


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

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https://bugs.launchpad.net/bugs/1040326

Title:
  Unity Dock application mouse over labels are distorted or choppy after
  new unity update

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