>BTW, I'm afraid the proposed user_pin_configs isn't perfect either. 
>On the n76 (but I suspect the same applies to the n56) there's a SPDIF out, 
>shared with the headphone jack. 
>The proposed user_pin_configs don't create any SPDIF output.

if this proprietary subwoofer is supported by  asus laptop which use
alc663 , just ignore the misc no_presence bit of pin default ane enable
the unsolicited event with special event tag on pin 0x1e. define a
customised alc_!633_unsol_event() to handle the event by
snd_hda_get_pin_sense of 0x1e to handle the subwoofer at 0x16

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/871808

Title:
  Asus N55SF/N75SF - External subwoofer not working

Status in “alsa-driver” package in Ubuntu:
  Incomplete

Bug description:
  Asus N55SF laptop with external subwoofer wich connects to dedicated 2.5mm 
plug. http://www.asus.com/Notebooks/Multimedia_Entertainment/N55SF/
  In Windows it works fine but in Ubuntu it not works at all (see Ubuntu 
Question and Answers #173797 - 
https://answers.launchpad.net/ubuntu/+question/173797 )

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: pulseaudio 1:1.0-0ubuntu3
  ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
  Uname: Linux 3.0.0-12-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu2
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC663 Analog [ALC663 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  denis      1957 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xdf000000 irq 51'
     Mixer name : 'Realtek ALC663'
     Components : 'HDA:10ec0663,10431b73,00100001'
     Controls      : 23
     Simple ctrls  : 13
  Date: Mon Oct 10 19:11:30 2011
  ExecutablePath: /usr/bin/pulseaudio
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20111005)
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, no user)
   LANG=en_AU.utf8
   SHELL=/bin/bash
  SourcePackage: pulseaudio
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/29/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: N55SF.207
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: N55SF
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrN55SF.207:bd08/29/2011:svnASUSTeKComputerInc.:pnN55SF:pvr1.0:rvnASUSTeKComputerInc.:rnN55SF:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: N55SF
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.
  modified.conffile..etc.pulse.daemon.conf: [modified]
  mtime.conffile..etc.pulse.daemon.conf: 2011-10-07T16:17:51.250612

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