** Description changed:

  When I shut down my Dell Inspiron 1520, some hardware continues to run.
  Fans slow down, but they spin until the battery dies or else
  indefinitely if the laptop is plugged in.
  
  I see the same symptoms on my Dell XPS desktop at work using the same
  version of Ubuntu.
  
  I have tried editing /etc/default/grub as suggested elsewhere, with no
  effect.
  
  The symptom is the same whether I shutdown from the user menu, from the
  log in screen, or in terminal using "sudo poweroff", "sudo shutdown -h
  now", "sudo halt -p"
  
  As with others, switching to any tty using ctrl-alt-F1/6 gives a blank
  screen.  ctrl-alt-F7 restores the session.
  
  The daily development .iso (Quantal) and the latest kernel (3.4.0--999)
  both seem to restart and shut down correctly.
- 
- WORKAROUND: Type in a terminal:
- sudo nano /etc/default/grub
- 
- find the line:
- GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
- 
- and change it to:
- GRUB_CMDLINE_LINUX_DEFAULT="reboot=pci quiet splash"
- 
- save then perform via the Terminal:
- sudo update-grub
- 
- and reboot the PC.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-24-generic 3.2.0-24.39
  ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
  Uname: Linux 3.2.0-24-generic i686
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu7
  Architecture: i386
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jordan     1771 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfebfc000 irq 45'
     Mixer name : 'SigmaTel STAC9205'
     Components : 'HDA:838476a0,102801f1,00100204 
HDA:14f12c06,14f1000f,00100000'
     Controls      : 20
     Simple ctrls  : 11
  Date: Thu May 24 21:10:23 2012
  HibernationDevice: RESUME=UUID=6debc523-7e6a-4193-9bbc-51a0b5f15aeb
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
  MachineType: Dell Inc. Inspiron 1520
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic 
root=UUID=66bd8dec-903d-4270-b4d8-80c50cd54b31 ro quiet splash acpi=force 
vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-24-generic N/A
   linux-backports-modules-3.2.0-24-generic  N/A
   linux-firmware                            1.79
  SourcePackage: linux
  UpgradeStatus: Upgraded to precise on 2012-05-05 (20 days ago)
  dmi.bios.date: 11/05/2007
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A04
  dmi.board.name: 0KY768
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvrA04:bd11/05/2007:svnDellInc.:pnInspiron1520:pvr:rvnDellInc.:rn0KY768:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Inspiron 1520
  dmi.sys.vendor: Dell Inc.

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https://bugs.launchpad.net/bugs/1004293

Title:
  Ubuntu 12.04 fails to shut down the hardware.

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