** Attachment added: "Output from lspci -vvnn"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/855449/+attachment/2435466/+files/lspci.txt

** Tags added: apport-collected natty

** Description changed:

  I have been unable to successfully boot Ubuntu (10.10, 11.04, 11.10
  23bit and 64bit) unless the acpi=off setting is referenced at boot time.
  The screen will generally go black and leave a blinking underscore
  cursor in the top left hand of the screen.  I have been able to boot
  other distributions of Linux but these have used much older kernels.
  
  I have followed advice on several forum pages regarding similar issues
  but none of this has resolved the issue.  Attempting to boot with
  "verbose" and "text" parameters does not provide any further hints as to
  what may be causing the problem, there is text shown on the screen but
  the boot hang does not always occur at the same place, so this is
  inconsistent.  I have also followed the debugging guidelines on
  https://wiki.ubuntu.com/DebuggingACPI but again the only thing that
  works is the "acpi=off" parameter.
  
  I have replaced the motherboard and the processor but neither of these
  has resolved the issue.
  
- What I would expect to happen is for Ubuntu to boot correctly without
- the need to either manually specify boot parameters at the grub menu or
- to have to update the grub config (/etc/default/grub).
+ What I would expect to happen is for Ubuntu to boot correctly without the 
need to either manually specify boot parameters at the grub menu or to have to 
update the grub config (/etc/default/grub).
+ --- 
+ AcpiTables:
+  
+ AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
+ Architecture: amd64
+ AudioDevicesInUse:
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC2:  glyn       1493 F.... pulseaudio
+  /dev/snd/controlC0:  glyn       1493 F.... pulseaudio
+ CRDA: Error: [Errno 2] No such file or directory
+ Card0.Amixer.info:
+  Card hw:0 'PCH'/'HDA Intel PCH at 0xfa300000 irq 46'
+    Mixer name : 'Realtek ALC892'
+    Components : 'HDA:10ec0892,10438469,00100302'
+    Controls      : 32
+    Simple ctrls  : 18
+ Card1.Amixer.info:
+  Card hw:1 'NVidia'/'HDA NVidia at 0xfa080000 irq 17'
+    Mixer name : 'Nvidia GPU 11 HDMI/DP'
+    Components : 'HDA:10de0011,10de0101,00100100'
+    Controls      : 16
+    Simple ctrls  : 4
+ Card2.Amixer.info:
+  Card hw:2 'V1'/'Creative Technology Ltd. VF0680 Live! Cam Socialize HD 1 at 
usb-0000:00:1d.0-1.'
+    Mixer name : 'USB Mixer'
+    Components : 'USB041e:4087'
+    Controls      : 2
+    Simple ctrls  : 1
+ DistroRelease: Ubuntu 11.04
+ HibernationDevice: RESUME=UUID=3655bf4d-f64b-460c-8b5f-98f1d0ee89ff
+ InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
+ IwConfig:
+  lo        no wireless extensions.
+  
+  eth0      no wireless extensions.
+ MachineType: System manufacturer System Product Name
+ NonfreeKernelModules: nvidia
+ Package: linux (not installed)
+ ProcEnviron:
+  LANGUAGE=en_GB:en
+  PATH=(custom, no user)
+  LANG=en_GB.UTF-8
+  SHELL=/bin/bash
+ ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-generic 
root=UUID=186b4199-9110-4498-bcbf-16c491573287 ro splash acpi=off vt.handoff=7
+ ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
+ RelatedPackageVersions:
+  linux-restricted-modules-2.6.38-11-generic N/A
+  linux-backports-modules-2.6.38-11-generic  N/A
+  linux-firmware                             1.52
+ RfKill:
+  
+ Tags:  natty
+ Uname: Linux 2.6.38-11-generic x86_64
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups:
+  
+ dmi.bios.date: 08/10/2011
+ dmi.bios.vendor: American Megatrends Inc.
+ dmi.bios.version: 0720
+ dmi.board.asset.tag: To be filled by O.E.M.
+ dmi.board.name: P8P67-M PRO
+ dmi.board.vendor: ASUSTeK Computer INC.
+ dmi.board.version: Rev X.0X
+ dmi.chassis.asset.tag: Asset-1234567890
+ dmi.chassis.type: 3
+ dmi.chassis.vendor: Chassis Manufacture
+ dmi.chassis.version: Chassis Version
+ dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr0720:bd08/10/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8P67-MPRO:rvrRevX.0X:cvnChassisManufacture:ct3:cvrChassisVersion:
+ dmi.product.name: System Product Name
+ dmi.product.version: System Version
+ dmi.sys.vendor: System manufacturer

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https://bugs.launchpad.net/bugs/855449

Title:
  Unable to boot normally, have to use acpi=off

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