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[Raymond <1078704@xxxxxxxxxxxxxxxxxx>]

(In reply to Arun Raghavan from comment #8)
> What needs to be done here? ALSA-side fix?


https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/893210

it is unlikely fix in alsa driver as pulseaudio expect jack detection
kctl

although js0 ST or js1 ST of ac97 register 0x72 of ad1981b may reflect
hp status


it is not clear how and when to check the change in jack state by timer or interrept

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https://bugs.launchpad.net/bugs/1078704

Title:
  headphone jack sense not enabled

Status in ALSA driver:
  Confirmed
Status in alsa-driver package in Ubuntu:
  New
Status in pulseaudio package in Ubuntu:
  New

Bug description:
  bug is present in Ubuntu 12.04 and Xubuntu 12.04 and Lubuntu 12.04.1 64bit 
  alsa-base 1.0.25+dfsg-0ubuntu1 on this machine (64 bit)
  I except Ubuntu to automatically sense the presence of headphones and disable the speakers.  This is not the case, the speakers and headphones play simultaneously.  I must install gnome-alsamixer to manually set the jack sense.  Alsa should have this enabled as the default setting.  This seems as though it should be a very easy bug to fix, though.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu1
  ProcVersionSignature: Ubuntu 3.2.0-32.51-generic 3.2.30
  Uname: Linux 3.2.0-32-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu14
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  love       1330 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'nForce3'/'NVidia nForce3 with AD1981B at irq 21'
     Mixer name	: 'Analog Devices AD1981B'
     Components	: 'AC97a:41445374'
     Controls      : 33
     Simple ctrls  : 22
  Date: Wed Nov 14 06:42:21 2012
  InstallationMedia: Lubuntu 12.04 "Precise Pangolin" - Release amd64 (20120423)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: alsa-driver
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/30/2004
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.11
  dmi.board.name: 08A0
  dmi.board.vendor: Compal
  dmi.board.version: 32.22
  dmi.chassis.type: 10
  dmi.chassis.vendor: Compal
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.11:bd04/30/2004:svnHewlett-Packard:pnPresarioR3200(PF153UA#ABA):pvrF.11:rvnCompal:rn08A0:rvr32.22:cvnCompal:ct10:cvr:
  dmi.product.name: Presario R3200 (PF153UA#ABA)
  dmi.product.version: F.11
  dmi.sys.vendor: Hewlett-Packard

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