Public bug reported:

I have the same issue as in Bug #1171940. The difference is that my machine is 
slightly different (High-Res display) and the pci id is somewhat different. So 
I edited the patch supplied there and try to fix the issue. However the screen 
still stays black.
--- 
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  srhl62     2027 F.... pulseaudio
 /dev/snd/controlC0:  srhl62     2027 F.... pulseaudio
DistroRelease: Ubuntu 13.04
InstallationDate: Installed on 2013-04-21 (19 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130420)
MachineType: Apple Inc. MacBookPro8,2
MarkForUpload: True
NonfreeKernelModules: wl
Package: linux (not installed)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcFB:
 0 radeondrmfb
 1 inteldrmfb
ProcKernelCmdLine: root=UUID=dc157da7-a9a1-4ce6-963f-c3b28c9cf340 ro 
add_efi_memmap modprobe.blacklist=i915 radeon.modeset=1  quiet splash 
$vt_handoff initrd=\initrd.img-3.8.0-20-mbp82fix
ProcVersionSignature: Ubuntu 3.8.0-20.31-mbp82fix 3.8.11
RelatedPackageVersions:
 linux-restricted-modules-3.8.0-20-mbp82fix N/A
 linux-backports-modules-3.8.0-20-mbp82fix  N/A
 linux-firmware                             1.106
Tags:  raring
Uname: Linux 3.8.0-20-mbp82fix x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 01/24/12
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP81.88Z.0047.B27.1201241646
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-94245A3940C91C80
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro8,2
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-94245A3940C91C80
dmi.modalias: 
dmi:bvnAppleInc.:bvrMBP81.88Z.0047.B27.1201241646:bd01/24/12:svnAppleInc.:pnMacBookPro8,2:pvr1.0:rvnAppleInc.:rnMac-94245A3940C91C80:rvrMacBookPro8,2:cvnAppleInc.:ct10:cvrMac-94245A3940C91C80:
dmi.product.name: MacBookPro8,2
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: apport-collected raring

** Tags added: apport-collected raring

** Description changed:

- I have the same issue as in Bug #1171940. The difference is that my
- machine is slightly different (High-Res display) and the pci id is
- somewhat different. So I edited the patch supplied there and try to fix
- the issue. However the screen still stays black.
+ I have the same issue as in Bug #1171940. The difference is that my machine 
is slightly different (High-Res display) and the pci id is somewhat different. 
So I edited the patch supplied there and try to fix the issue. However the 
screen still stays black.
+ --- 
+ ApportVersion: 2.9.2-0ubuntu8
+ Architecture: amd64
+ AudioDevicesInUse:
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC1:  srhl62     2027 F.... pulseaudio
+  /dev/snd/controlC0:  srhl62     2027 F.... pulseaudio
+ DistroRelease: Ubuntu 13.04
+ InstallationDate: Installed on 2013-04-21 (19 days ago)
+ InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130420)
+ MachineType: Apple Inc. MacBookPro8,2
+ MarkForUpload: True
+ NonfreeKernelModules: wl
+ Package: linux (not installed)
+ ProcEnviron:
+  TERM=xterm
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=<set>
+  LANG=de_DE.UTF-8
+  SHELL=/bin/bash
+ ProcFB:
+  0 radeondrmfb
+  1 inteldrmfb
+ ProcKernelCmdLine: root=UUID=dc157da7-a9a1-4ce6-963f-c3b28c9cf340 ro 
add_efi_memmap modprobe.blacklist=i915 radeon.modeset=1  quiet splash 
$vt_handoff initrd=\initrd.img-3.8.0-20-mbp82fix
+ ProcVersionSignature: Ubuntu 3.8.0-20.31-mbp82fix 3.8.11
+ RelatedPackageVersions:
+  linux-restricted-modules-3.8.0-20-mbp82fix N/A
+  linux-backports-modules-3.8.0-20-mbp82fix  N/A
+  linux-firmware                             1.106
+ Tags:  raring
+ Uname: Linux 3.8.0-20-mbp82fix x86_64
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
+ dmi.bios.date: 01/24/12
+ dmi.bios.vendor: Apple Inc.
+ dmi.bios.version: MBP81.88Z.0047.B27.1201241646
+ dmi.board.asset.tag: Base Board Asset Tag#
+ dmi.board.name: Mac-94245A3940C91C80
+ dmi.board.vendor: Apple Inc.
+ dmi.board.version: MacBookPro8,2
+ dmi.chassis.type: 10
+ dmi.chassis.vendor: Apple Inc.
+ dmi.chassis.version: Mac-94245A3940C91C80
+ dmi.modalias: 
dmi:bvnAppleInc.:bvrMBP81.88Z.0047.B27.1201241646:bd01/24/12:svnAppleInc.:pnMacBookPro8,2:pvr1.0:rvnAppleInc.:rnMac-94245A3940C91C80:rvrMacBookPro8,2:cvnAppleInc.:ct10:cvrMac-94245A3940C91C80:
+ dmi.product.name: MacBookPro8,2
+ dmi.product.version: 1.0
+ dmi.sys.vendor: Apple Inc.

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https://bugs.launchpad.net/bugs/1178747

Title:
  vgaswitcheroo on the Macbook Pro 8,2 high-res

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