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[Launchpad Bug Tracker <950056@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/950056

Title:
  Reboot hangs on Dell OptiPlex 780 (board 03NVJ6); reboot=bios works
  around

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  Running 11.10 on a Dell OptiPlex 780.  More than half the time when I
  reboot (e.g. by running "reboot" as root), the system will hang just
  after displaying the "now restarting" message, and not reboot.  Adding
  "reboot=bios" to the kernel command line seems to solve this problem:
  four reboots in a row have been successful.  I have tried updating to
  the latest BIOS (revision A12), and that hasn't made any difference.

  This seems to be an equivalent problem to #488319 (OptiPlex 760) and
  #115011 (OptiPlex 745).  I've found other references to the problem
  here:

  <https://wiki.inf.ed.ac.uk/DICE/F13Upgrade> (apparently solved by reboot=bios)
  <http://fogproject.org/forum/threads/tftpboot-restart-problems.238/> (apparently solved by changing kernel)

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-image-3.0.0-16-generic 3.0.0-16.28
  ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17
  Uname: Linux 3.0.0-16-generic i686
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu4
  Architecture: i386
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
     Subdevices: 2/2
     Subdevice #0: subdevice #0
     Subdevice #1: subdevice #1
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  lightdm    1535 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf7adc000 irq 50'
     Mixer name	: 'Analog Devices AD1984A'
     Components	: 'HDA:11d4194a,10280420,00100400'
     Controls      : 34
     Simple ctrls  : 20
  Date: Thu Mar  8 16:18:22 2012
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111011)
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
  MachineType: Dell Inc. OptiPlex 780
  ProcEnviron:
   LANGUAGE=en_GB:
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-16-generic root=UUID=21453ce7-2d21-43c9-bc33-a496207cee55 ro quiet splash reboot=bios vt.handoff=7
  PulseSinks: Error: command ['pacmd', 'list-sinks'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  PulseSources: Error: command ['pacmd', 'list-sources'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-16-generic N/A
   linux-backports-modules-3.0.0-16-generic  N/A
   linux-firmware                            1.60
  RfKill:
   
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/09/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A12
  dmi.board.name: 03NVJ6
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 15
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA12:bd12/09/2011:svnDellInc.:pnOptiPlex780:pvr:rvnDellInc.:rn03NVJ6:rvrA00:cvnDellInc.:ct15:cvr:
  dmi.product.name: OptiPlex 780
  dmi.sys.vendor: Dell Inc.

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