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[Launchpad Bug Tracker <1082833@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/1082833

Title:
  [Dell XPS 15z L511z] Failed boot, producing: "[Firmware Bug]
  ACPI(PEPG) defines _DOD but not _DOS"

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  I am aware of the acpi=noirq situation, and follow the setup here
  https://wiki.ubuntu.com/HardwareSupport/Machines/Laptops/Dell/XPS/15z

  What happened is after an update this week, booting ended in a frozen
  black screen (exactly as has been reported before). Reinstalling 12.04
  worked fine. However, after a kernel update, I got the same black
  screen on reboot.

  Booting with 3.2.0-29-generic works (not 3.2.0-33-generic).

  WORKAROUND: uses acpi_backlight=vendor dell_laptop.backlight=0

  ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu15
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  qilin      1835 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf1c00000 irq 27'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:10ec0269,10280446,00100100 HDA:80862805,80860101,00100000'
     Controls      : 25
     Simple ctrls  : 12
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=acf3443f-1c25-485a-ad13-30e9b6f570fb
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
  MachineType: Dell Inc. Dell System XPS 15Z
  MarkForUpload: True
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic root=UUID=9ea6e1cc-036a-4be5-9b2a-6c4982c9d71c ro acpi=noirq quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-29-generic N/A
   linux-backports-modules-3.2.0-29-generic  N/A
   linux-firmware                            1.79.1
  StagingDrivers: mei
  Tags:  precise running-unity staging
  Uname: Linux 3.2.0-29-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 09/17/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A06
  dmi.board.name: 00WW5M
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA06:bd09/17/2011:svnDellInc.:pnDellSystemXPS15Z:pvr:rvnDellInc.:rn00WW5M:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System XPS 15Z
  dmi.sys.vendor: Dell Inc.

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