12.10 boots into 2D mode

[Christopher]

I had exactly the same problem when upgrading from 11.10 to 12.04. After upgrading to 12.10 only 2D mode is available again.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: fglrx (not installed)
ProcVersionSignature: Ubuntu 3.4.0-5.11-generic 3.4.0
Uname: Linux 3.4.0-5-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.2.3-0ubuntu3
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,workarounds,scale,expo,ezoom]
CompositorRunning: None
Date: Sat Jun 16 08:39:45 2012
DistUpgraded: 2012-06-15 16:02:51,412 DEBUG enabling apt cron job
DistroCodename: quantal
DistroVariant: ubuntu
DkmsStatus:
 bcmwl, 5.100.82.38+bdcom, 3.2.0-25-generic, x86_64: installed
 bcmwl, 5.100.82.38+bdcom, 3.4.0-5-generic, x86_64: installed
 fglrx-updates, 8.960, 3.2.0-25-generic, x86_64: installed
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI RS880M [Mobility Radeon HD 4200 Series] [1002:9712] (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:3949]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110803.1)
MachineType: LENOVO 4311
ProcEnviron:
 LANGUAGE=en_CA:en
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.4.0-5-generic root=UUID=935151a7-3e66-4281-b03c-3e5543b35bbb ro quiet splash
SourcePackage: fglrx-installer
UnitySupportTest:
 Error: command ['/usr/lib/nux/unity_support_test', '-p', '-f'] failed with exit code 1: X Error of failed request: BadRequest (invalid request code or no such operation)
   Major opcode of failed request: 138 (ATIFGLEXTENSION)
   Minor opcode of failed request: 66 ()
   Serial number of failed request: 23
   Current serial number in output stream: 23
UpgradeStatus: Upgraded to quantal on 2012-06-15 (0 days ago)
dmi.bios.date: 09/07/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 36CN19WW(V2.05)
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Guam
dmi.board.vendor: LENOVO
dmi.board.version: Base Board Version
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnLENOVO:bvr36CN19WW(V2.05):bd09/07/2010:svnLENOVO:pn4311:pvrIdeaPadZ565:rvnLENOVO:rnGuam:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: 4311
dmi.product.version: IdeaPad Z565
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.7.8-0ubuntu3
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.33-1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu4
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu11
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu2
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 2:2.19.0-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20120322+ab7291d-1