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[Jared Beck <jared@xxxxxxxxxxxxx>]

Simply running the HP Support Assistant to update the BIOS worked for
me.  I have an HP Pavilion dv7.  The LED next to the power adapter was
blinking white, and neither ubuntu nor windows could find the battery.
I rebooted into windows 7, ran the HP Support Assistant a few times,
which installed at least one BIOS update.  I shut down, removed and re-
inserted the battery, then removed and re-inserted the AC power adapter.
The LED next to the power adapter turned orange, indicating charging.
Finally, I booted windows and the taskbar indicates that the battery is
charging.  I haven't booted ubuntu yet, but I am optimistic that the
issue is resolved.

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https://bugs.launchpad.net/bugs/1034627

Title:
  HP Pavilion dv7 Battery Not Present (even though it is)

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  After installing 12.04, a perfectly good battery shows not present, and when unplugged it acts like a PC and dies.
  Ubuntu 3.2.0-26.41-generic-pae 3.2.19

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-26-generic-pae 3.2.0-26.41
  ProcVersionSignature: Ubuntu 3.2.0-26.41-generic-pae 3.2.19
  Uname: Linux 3.2.0-26-generic-pae i686
  NonfreeKernelModules: fglrx
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: i386
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: SB [HDA ATI SB], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  danita     1642 F.... pulseaudio
   /dev/snd/controlC0:  danita     1642 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'SB'/'HDA ATI SB at 0xd2500000 irq 16'
     Mixer name	: 'IDT 92HD71B7X'
     Components	: 'HDA:111d76b2,103c3625,00100302 HDA:11c11040,103c137e,00100200'
     Controls      : 23
     Simple ctrls  : 13
  Card1.Amixer.info:
   Card hw:1 'HDMI'/'HDA ATI HDMI at 0xd2410000 irq 19'
     Mixer name	: 'ATI RS690/780 HDMI'
     Components	: 'HDA:1002791a,00791a00,00100000'
     Controls      : 4
     Simple ctrls  : 1
  Card1.Amixer.values:
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Date: Wed Aug  8 17:38:04 2012
  HibernationDevice: RESUME=UUID=e7309900-1a12-4128-bcd3-311339bb5ae8
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
  MachineType: Hewlett-Packard HP Pavilion dv7 Notebook PC
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-26-generic-pae root=UUID=0934e5b4-e956-4c1e-b5a7-d32276386802 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-26-generic-pae N/A
   linux-backports-modules-3.2.0-26-generic-pae  N/A
   linux-firmware                                1.79
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/04/2008
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.35
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 30FC
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 01.83
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.35:bd12/04/2008:svnHewlett-Packard:pnHPPaviliondv7NotebookPC:pvr1:rvnHewlett-Packard:rn30FC:rvr01.83:cvnHewlett-Packard:ct10:cvrN/A:
  dmi.product.name: HP Pavilion dv7 Notebook PC
  dmi.product.version: 1
  dmi.sys.vendor: Hewlett-Packard

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