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[psypher <1010981@xxxxxxxxxxxxxxxxxx>]

Forgot to mention thgis only started happening after I installed 13.04.
No issues with this hardware on 12.04 or 12.10

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https://bugs.launchpad.net/bugs/1010981

Title:
  Computer does not power off when attempting to shut down by any route.

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  Computer does not shut down, but instead merely freezes at the
  graphical splash screen while remaining powered on, with monitor,
  fans, and all other hardware still running. I've attempted the
  following, all with no success:

  - Issuing halt, poweroff, halt -P, shutdown -h/-H/-P, and every other
  conceivable variation thereof from a terminal. Have also attempted
  these commands from a tty after killing X.

  - Graphical shutdown from unity panel. Have also tried this at login
  screen.

  - Have attempted to disable various services and kernel modules that
  have been implicated in other bug reports complaining of similar
  issues (namely, laptop-mode, acpi-support, proprietary fglrx driver,
  networking, and misc. others).

  - Various suggestions from Ubuntu forums (editing /etc/default/halt,
  updating grub with various different arguments to
  GRUB_CMDLINE_LINUX_DEFAULT, disabling network-manager service prior to
  attempting shut down, and others).

  This shut down malfunction happens invariably and with total
  predictability. Oddly, rebooting does initially appear to work, but
  when computer powers back on, the OS fails to load and instead hangs
  at a blank, purple screen (without the typical Ubuntu logo).

  Other relevant info:

  - Computer is an Acer Aspire 5560-7402 laptop.

  - Ubuntu is the sole OS, installed recently with default/automatic
  partitioning settings, using whole disk.

  - uname -srvmpio output:
  Linux 3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:52:17 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux (please note that the problem began immediately after installation, i.e., before upgrade from 3.2.0-23-generic kernel).

  - lsb_release -rd output:
  Description:    Ubuntu 12.04 LTS
  Release:        12.04
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 1: Generic_1 [HD-Audio Generic], device 0: ALC269VB Analog [ALC269VB Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  grisha     3169 F.... pulseaudio
   /dev/snd/controlC0:  grisha     3169 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Card0.Amixer.info:
   Card hw:0 'Generic'/'HD-Audio Generic at 0xf0244000 irq 43'
     Mixer name	: 'ATI R6xx HDMI'
     Components	: 'HDA:1002aa01,00aa0100,00100200'
     Controls      : 6
     Simple ctrls  : 1
  Card0.Amixer.values:
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Card1.Amixer.info:
   Card hw:1 'Generic_1'/'HD-Audio Generic at 0xf0240000 irq 16'
     Mixer name	: 'Realtek ALC269VB'
     Components	: 'HDA:10ec0269,1025059f,00100100'
     Controls      : 20
     Simple ctrls  : 11
  DistroRelease: Ubuntu 12.04
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=752809a0-c0c2-4a3e-922e-32aafd530966
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: Acer Aspire 5560
  NonfreeKernelModules: wl fglrx
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm-color
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=3e6d51a0-a09b-43bd-911e-8297b64dec52 ro acpi=force quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
  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
  Tags:  precise precise
  Uname: Linux 3.2.0-24-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 12/05/2011
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: V1.15
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Aspire 5560
  dmi.board.vendor: Acer
  dmi.board.version: A11
  dmi.chassis.asset.tag: Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: Acer
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV1.15:bd12/05/2011:svnAcer:pnAspire5560:pvr0.1:rvnAcer:rnAspire5560:rvrA11:cvnAcer:ct9:cvr0.1:
  dmi.product.name: Aspire 5560
  dmi.product.version: 0.1
  dmi.sys.vendor: Acer

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