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[Launchpad Bug Tracker <774089@xxxxxxxxxxxxxxxxxx>]

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Dear all,

I am experiencing a severe problem after a new install of Natty Narwhal
on my Macbook Pro last night:

The install worked fine, but after reboot nothing came up except fo a black screen.
After forcing the machine off and on multiple times I was able to bring up the rEFIt boot menu by pressing and holding the 'Alt' (or Option) key and I can then boot into MacOSX or Ubuntu without a problem.

After restarting / powering off I then have to turn the computer on /
off the same number of times (3 or 4, I don't remember exactly) where
nothing happens until it works again.

I am using a MacbookPro 5,5 (13.3 Inch). My harddisk is setup as follows:
200MB Partition for EFI
20GB Partition for OSX
18.6 GB Partition for / (ext4)
108.49 GB Partition for /home (ext4)
1.86 GB Partition for swap

Other people also seem to experience the same issue:
http://ubuntuforums.org/showthread.php?p=10743955&posted=1#post10743955

This is a pretty big problem for me, so your help is very much
appreciated.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-8-generic 2.6.38-8.42
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: NVidia [HDA NVidia], device 0: Cirrus Analog [Cirrus Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  paul       1487 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0xd3480000 irq 20'
   Mixer name	: 'Cirrus Logic CS4206'
   Components	: 'HDA:10134206,106b4d00,00100301'
   Controls      : 17
   Simple ctrls  : 10
Date: Sat Apr 30 14:53:06 2011
HibernationDevice: RESUME=UUID=55afdc53-85cf-4d37-98c6-fbdd4f1c8482
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: Apple Inc. MacBookPro5,5
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=3aad2af7-44e6-4e93-8055-7e1818600eac ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-8-generic N/A
 linux-backports-modules-2.6.38-8-generic  N/A
 linux-firmware                            1.52
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/15/09
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP55.88Z.00AC.B03.0906151708
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-F2268AC8
dmi.board.vendor: Apple Inc.
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F2268AC8
dmi.modalias: dmi:bvnAppleInc.:bvrMBP55.88Z.00AC.B03.0906151708:bd06/15/09:svnAppleInc.:pnMacBookPro5,5:pvr1.0:rvnAppleInc.:rnMac-F2268AC8:rvr:cvnAppleInc.:ct10:cvrMac-F2268AC8:
dmi.product.name: MacBookPro5,5
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

** Affects: ubuntu
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug natty running-unity
-- 
Booting fails 3 times, works every fourth time after new install of Natty Narwhal amd64 on Macbook Pro
https://bugs.launchpad.net/bugs/774089
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