Public bug reported:

I am using Ubuntu Oneric. Recent updates (where recent means the last
two weeks, I can't say when exactly it happened) broke my desktop
completely.

Every part of the screen, I mean every button, label, checkboxes and other 
interface widgets, the panel, launcher, desktop itselt, window title panels, 
and probably even more elements turned into black rectangles. In some cases 
it's a flashing rectangle (launcher is simply black, but the wallpaper behind 
it flashes when I touch it with my mouse). In case of window titles this is 
just a black rectangle instead of window decoration. In case of buttons labels 
etc. they display OK, until I move the mouse over them, then they turn into 
this black rectangle, and get back to normal when I move the window (sometimes 
some parts of the window randomly switch back to normal, just as if the window 
was partially redrawn). In firefox, behavior is similar, but everything gets 
black when I scroll the page, and returns to normal when I switch the tab. In 
terminal, all characters I type are black rectangles and are not seen at all, 
but it gets redrawn properly when I move the window. The unity panel is not 
displayed at all (black).
I cannot see the desktop itself, it's whole black, unless I open an indicator's 
menu, when I can see both the full walpaper and the icons. 

I tried both fglrx from the repos and from ati driver download site, the
result is same.

Unity2D works okay, and that's what I use temporarily, but I never had
problems with unity3D. Note this apport-bug report I collected when
using the broken unity3D, hope that will be more useful.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: unity 4.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-7.9-generic 3.0.0
Uname: Linux 3.0.0-7-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
CompizPlugins: 
[core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unitydialog,unityshell]
CompositorRunning: compiz
Date: Mon Aug  1 08:25:07 2011
DistUpgraded: Fresh install
DistroCodename: oneiric
DistroVariant: ubuntu
DkmsStatus:
 bcmwl, 5.100.82.38+bdcom, 3.0.0-4-generic, x86_64: installed
 bcmwl, 5.100.82.38+bdcom, 3.0.0-5-generic, x86_64: installed
 bcmwl, 5.100.82.38+bdcom, 3.0-3-generic, x86_64: installed
 fglrx, 8.872, 3.0.0-7-generic, x86_64: installed
DpkgLog:
 
GraphicsCard:
 ATI Technologies Inc Mobility Radeon HD 3650 [1002:9591] (prog-if 00 [VGA 
controller])
   Subsystem: Dell Device [1028:02a0]
JockeyStatus:
 kmod:wl - Sterownik urządzeń bezprzewodowych Broadcom STA (Własnościowy, 
Wyłączony, Nieużywany) [auto-install]
 xorg:fglrx - Własnościowy sterownik grafiki ATI/AMD FGLRX (Własnościowy, 
Wyłączony, Nieużywany)
MachineType: Dell Inc. Studio 1737
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-7-generic 
root=UUID=5475739e-9d60-42fb-87a7-b3b60dce11c0 ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/11/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0P786H
dmi.board.vendor: Dell Inc.
dmi.board.version: A05
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A05
dmi.modalias: 
dmi:bvnDellInc.:bvrA05:bd02/11/2009:svnDellInc.:pnStudio1737:pvrA05:rvnDellInc.:rn0P786H:rvrA05:cvnDellInc.:ct8:cvrA05:
dmi.product.name: Studio 1737
dmi.product.version: A05
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.5.0-0ubuntu1
version.fglrx-installer: fglrx-installer N/A
version.ia32-libs: ia32-libs 20090808ubuntu13
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11~1-0ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11~1-0ubuntu4
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.2-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.0-3ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:0.0.16+git20110411+8378443-1

** Affects: nux
     Importance: Undecided
         Status: New

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


** Tags: amd64 apport-bug compiz-0.9 oneiric regression reproducible 
running-unity ubuntu

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https://bugs.launchpad.net/bugs/819144

Title:
  everything is black and blinks when using unity

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