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[Raymond <1078704@xxxxxxxxxxxxxxxxxx>]

0:72 = 1804
0:74 = 1001
0:76 = 2010


cat /proc/asound/card0/intel8x0
 Intel8x0

Global control : 0xc0000002
 Global status : 0x00700100
 SDM : 0x00000008
 AC'97 codecs ready : primary
 AC'97 codecs SDIN : 0 0 0


card*/codec97#0/ac97#?-?+regs
  Shows the AC97 register dump. Useful for debugging.

 recompile alsa driver with CONFIG_SND_DEBUG is enabled, you can write to this file for
  changing an AC97 register directly. 

Pass two hex numbers.
  For example,

 # echo 02 9f1f > /proc/asound/card0/codec97#0/ac97#0-0+regs

this change master playback volume register


with headphone unplugged

set js1 mode bit of ac97 register 0x72

echo 72 1824 > /proc/asound/card0/codec97#0/ac97#0-0+regs

plug headphone

cat /proc/asound/card0/intel8x0

check bit 0 of global status is set or not

repeat the test with line out by set js0 mode

if gpi bit of global status was set after jack is plugged

we need to add a check of this bit  in snd_intel8x0_interrupt and call
those ad198x_handle_jp_jack

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1078704

Title:
  headphone jack sense not enabled

Status in ALSA driver:
  Confirmed
Status in alsa-driver package in Ubuntu:
  Incomplete
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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