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[Raymond <893210@xxxxxxxxxxxxxxxxxx>]

cat /proc/asound/card0/intel8x0

show the values of global control and global status registers of ac97
controller


SERIAL CONFIGURATION REGISTER  Index 0x74

D4

INTS  Interrupt Mode Select This bit selects the JS interrupt implementation path.  
0 = Bit 0 Slot 12 (modem interrupt). 
 1 = Slot 6 valid bit (MIC ADC interrupt).




2.2.9 GLOB_STA—Global Status Register (Audio—D30:F2) I/O Address: Default Value: Lockable: Bit 31:30Reserved. NABMBAR + 30h


GPI Status Change Interrupt (GSCI) — R/WC. 
0 =Software clears this bit by writing a 1 to it. 
1 =This bit reflects the state of bit 0 in slot 12, and is set when bit 0 of slot 12 is set. This indicates that one of the GPI’s changed state, and that the new values are available in slot 12. This bit is not affected by AC ‘97 Audio Function D3HOT to D0 Reset.

have you patch ac97 codec ?

you need ac97 codec create three jack detect kctls for  [Jack Headphone]
, [Jack Line Out] and [Jack Speaker Phantom]

the avaliablity of the port is determined by those jack detect kctls

post the output of alsa-info.sh

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https://bugs.launchpad.net/bugs/893210

Title:
  [Dell OptiPlex GX620 - AD1981b, playback] No sound at all

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

Bug description:
  fresh install of ubuntu studio and updates but internal speakers do
  not play. dell optiplex gx620 love ya

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: alsa-base 1.0.24+dfsg-0ubuntu2
  ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
  Uname: Linux 3.0.0-13-generic i686
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu4
  Architecture: i386
  Card0.Amixer.info:
   Card hw:0 'ICH7'/'Intel ICH7 with AD1981B at irq 23'
     Mixer name	: 'Analog Devices AD1981B'
     Components	: 'AC97a:41445374'
     Controls      : 28
     Simple ctrls  : 20
  Card1.Amixer.info:
   Card hw:1 'Device'/'C-Media Electronics Inc. USB Multimedia Audio Device at usb-0000:00:1d.7-4.1.4,'
     Mixer name	: 'USB Mixer'
     Components	: 'USB0d8c:0105'
     Controls      : 13
     Simple ctrls  : 6
  Date: Mon Nov 21 11:51:25 2011
  InstallationMedia: Ubuntu-Studio 11.10 "Oneiric Ocelot" - Release i386 (20111011.1)
  PackageArchitecture: all
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:ICH7 failed
  Symptom_Card: CM108 Audio Controller - USB Multimedia Audio Device
  Symptom_Type: No sound at all
  Title: [ICH4 - Intel ICH7, playback] No sound at all
  UpgradeStatus: Upgraded to oneiric on 2011-11-12 (8 days ago)
  dmi.bios.date: 11/30/2006
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A11
  dmi.board.name: 0F8101
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 15
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA11:bd11/30/2006:svnDellInc.:pnOptiPlexGX620:pvr:rvnDellInc.:rn0F8101:rvr:cvnDellInc.:ct15:cvr:
  dmi.product.name: OptiPlex GX620
  dmi.sys.vendor: Dell Inc.

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