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[Adam Dingle <adam@xxxxxxxxx>]

To chime in here, as I mentioned above I have a newer Macbook (a
MacBook7,1) and am still seeing this behavior running Oneiric with all
the latest updates.  More specifically:

1. I start my laptop with an external monitor connected.  After I log in, the external monitor is still blank.
2. I run nvidia-settings and select X Server Display Configuration on the left. nvidia-settings shows both the laptop display and the external monitor.  I select the external monitor and choose Configuration: TwinView.
3. I press Apply.  The laptop display flashes briefly, but nothing else changes.  The external monitor is still blank.
4. I press Apply a second time.  Now I briefly see garbage on both displays.  After a few seconds it goes away, and I see a dialog box on the external monitor asking me whether I want to accept the display change.  I click OK.
5. Unfortunately, at this point Unity is no longer running (the sidebar and panel have vanished) and so I can't run any programs.  I have to switch to a different terminal console and reboot.

As a result, I can't use an external monitor with Ubuntu on this
Macbook.

-- 
You received this bug notification because you are a member of Mactel
Support, which is the registrant for Mactel Support.
https://bugs.launchpad.net/bugs/845174

Title:
  Second monitor doesn't work on MacBookAir3,1 with nvidia-current
  driver

Status in Mactel Support:
  New
Status in “nvidia-graphics-drivers” package in Ubuntu:
  Incomplete

Bug description:
  When plugging-in an external monitor on my MacBookAir3,1 using a Mini
  DisplayPort to DVI adapter my screens go garbled after detecting and
  activating the second monitor using nvidia-settings. Uploading video
  to next comment.

  My hardware previously worked fine in Maverick and Natty.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: nvidia-current 280.13-0ubuntu3
  ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
  Uname: Linux 3.0.0-10-generic x86_64
  NonfreeKernelModules: wl 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  280.13  Wed Jul 27 16:53:56 PDT 2011
   GCC version:  gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu2)
  .tmp.unity.support.test.0:
   
  ApportVersion: 1.22.1-0ubuntu2
  Architecture: amd64
  CheckboxSubmission: 15c9c9b122c9273f52b28c9a5df794ac
  CheckboxSystem: 7e42599bda39ea7ff8b528272b6ef52b
  CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,resize,fade,unitymtgrabhandles,scale,session,unityshell]
  CompositorRunning: compiz
  Date: Thu Sep  8 17:37:42 2011
  DistUpgraded: Log time: 2011-09-07 17:56:12.528248
  DistroCodename: oneiric
  DistroVariant: ubuntu
  DkmsStatus:
   bcmwl, 5.100.82.38+bdcom, 3.0.0-10-generic, x86_64: installed
   nvidia-current, 280.13, 3.0.0-10-generic, x86_64: installed
  EcryptfsInUse: Yes
  GraphicsCard:
   nVidia Corporation Device [10de:08a2] (rev a2) (prog-if 00 [VGA controller])
     Subsystem: Apple Computer Inc. Device [106b:00d4]
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64+mac (20110901)
  JockeyStatus:
   kmod:wl - Broadcom STA wireless driver (Proprietary, Enabled, In use) [auto-install]
   xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use)
  MachineType: Apple Inc. MacBookAir3,1
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-10-generic root=UUID=f1ecb7d8-5574-470d-b78e-030315e3a87a ro quiet splash reboot=pci acpi_backlight=vendor vt.handoff=7
  SourcePackage: nvidia-graphics-drivers
  UnitySupportTest: Error: command ['/usr/lib/nux/unity_support_test', '-p', '-f'] failed with exit code -11:
  UpgradeStatus: Upgraded to oneiric on 2011-09-08 (0 days ago)
  dmi.bios.date: 11/18/10
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBA31.88Z.0061.B01.1011181342
  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.B01.1011181342:bd11/18/10: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 1:0.9.5.92+bzr2791-0ubuntu2
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.26-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental 7.11-0ubuntu3
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  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 1:6.14.99~git20110811.g93fc084-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

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