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["nagarjuna.pamu" <nagarjuna.pamu@xxxxxxxxx>]

** Changed in: alsa-driver (Ubuntu)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1264213

Title:
  PCI/internal sound card not detected

Status in “alsa-driver” package in Ubuntu:
  Fix Released

Bug description:
  Every time my system goes through a hard shutdown (power outage,
  forced reboot), my audio stops working on reboot.  Usually I've been
  able to resuscitate the audio by reinstalling all the audio drivers,
  as suggested on the audio troubleshooting page for the Ubuntu
  community.  The last time, however, this did not work and I had to
  install the latest ppa audio, after which audio came back.  Now,
  nothing seems to work.  I know the sound card and audio systems are
  fine--the machine is a dual boot and audio works without problems with
  Windows running.  Ubuntu 'sees' the sound card, at least according to
  sysinfo.  But, my sound system settings shows "Dummy Output," no
  microphone, and no hardware.  I'm guessing that something left over
  from the hard reboot is blocking the system's access to my audio card,
  but can't seem to find anything online with suggestions for a fix.
  I'd say the problem is a bug because I'd hope Ubuntu would be robust
  to an occasional hard shutdown.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu1.1
  ProcVersionSignature: Ubuntu 3.2.0-57.87-generic 3.2.52
  Uname: Linux 3.2.0-57-generic x86_64
  AlsaDevices:
   total 0
   crw-rw---T+ 1 root audio 116,  1 Dec 25 20:59 seq
   crw-rw---T+ 1 root audio 116, 33 Dec 25 20:59 timer
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices: aplay: device_list:252: no soundcards found...
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  ArecordDevices: arecord: device_list:252: no soundcards found...
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  Date: Wed Dec 25 21:38:09 2013
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: alsa-driver
  Symptom: audio
  Title: PCI/internal sound card not detected
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/23/2012
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.1B
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 17FB
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 10.5A
  dmi.chassis.asset.tag: Chassis Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.1B:bd10/23/2012:svnHewlett-Packard:pnHPPaviliondv6NotebookPC:pvr058D110002204720000622100:rvnHewlett-Packard:rn17FB:rvr10.5A:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP Pavilion dv6 Notebook PC
  dmi.product.version: 058D110002204720000622100
  dmi.sys.vendor: Hewlett-Packard
  mtime.conffile..etc.modprobe.d.alsa.base.conf: 2013-12-25T20:57:56.271191

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