Macbook Air screen doesn't shut off when lid is closed

[Luke Hoersten]

The Apple Macbook Air 3,1 screen backlight doesn't shut off when the lid/screen is closed. After opening the lid again, the screen has some artifacting. Also, after opening the lid again, all the window manager chrome is just white (screenshot included).

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xorg 1:7.6+12ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-20.32-generic 3.2.12
Uname: Linux 3.2.0-20-generic x86_64
NonfreeKernelModules: nvidia wl
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.tmp.unity.support.test.0:

ApportVersion: 1.95-0ubuntu1
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,commands,resize,regex,move,place,snap,animation,vpswitch,grid,session,gnomecompat,imgpng,mousepoll,workarounds,unitymtgrabhandles,wall,expo,fade,ezoom,scale,unityshell]
CompositorRunning: compiz
Date: Sat Mar 24 21:23:55 2012
DistUpgraded: 2012-03-24 14:57:52,047 DEBUG enabling apt cron job
DistroCodename: precise
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
MachineType: Apple Inc. MacBookAir3,1
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-20-generic root=UUID=e2ff6ab8-ac4a-4c9b-9e14-e13aacf8e5e3 ro quiet splash reboot=pci acpi_backlight=vendor vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to precise on 2012-03-24 (0 days ago)
dmi.bios.date: 01/24/12
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBA31.88Z.0061.B07.1201241641
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-942452F5819B1C1B
dmi.board.vendor: Apple Inc.
dmi.board.version: 1.0
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-942452F5819B1C1B
dmi.modalias: dmi:bvnAppleInc.:bvrMBA31.88Z.0061.B07.1201241641:bd01/24/12:svnAppleInc.:pnMacBookAir3,1:pvr1.0:rvnAppleInc.:rnMac-942452F5819B1C1B:rvr1.0:cvnAppleInc.:ct10:cvrMac-942452F5819B1C1B:
dmi.product.name: MacBookAir3,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
version.compiz: compiz 1:0.9.7.2-0ubuntu1
version.ia32-libs: ia32-libs 20090808ubuntu35
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu2
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
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
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2