** Attachment added: "alsa-info.txt.y6KUMcy6ay"
   
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1006668/+attachment/3778101/+files/alsa-info.txt.y6KUMcy6ay

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https://bugs.launchpad.net/bugs/1006668

Title:
  Ubuntu, any version, No sound on Mac Pro Tower Systems

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

Bug description:
  I tried all possible combinations of the sound settings and was only
  ever able to get sound out of the back jack.

  No sound since I installed Ubuntu (9.04) on any Mac Pro (tower
  systems).  Upgrading over the years, now 12.04, still do not make
  sound.

  I tried following sound debugging documentation on ubuntu.com but no
  luck.  I think there is just no support for these computers.  Can
  someone add support?

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu1
  ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
  Uname: Linux 3.2.0-24-generic x86_64
  NonfreeKernelModules: windrvr6
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu7
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  verasonics   1742 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0x90b04000 irq 57'
     Mixer name : 'Realtek ALC889A'
     Components : 'HDA:10ec0885,106b0c00,00100103'
     Controls      : 27
     Simple ctrls  : 15
  Date: Wed May 30 17:55:44 2012
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel failed
  Symptom_Card: Built-in Audio - HDA Intel
  Symptom_DevicesInUse:
   1742  verasonics  F.... pulseaudio
     PID ACCESS COMMAND
  Symptom_Type: No sound at all
  Title: [HDA-Intel - HDA Intel, playback] No sound at all
  UpgradeStatus: Upgraded to precise on 2012-05-03 (27 days ago)
  dmi.bios.date: 02/29/08
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MP31.88Z.006C.B05.0802291410
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-F42C88C8
  dmi.board.vendor: Apple Inc.
  dmi.board.version: Proto1
  dmi.chassis.asset.tag: Asset Tag#
  dmi.chassis.type: 2
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-F42C88C8
  dmi.modalias: 
dmi:bvnAppleInc.:bvrMP31.88Z.006C.B05.0802291410:bd02/29/08:svnAppleInc.:pnMacPro3,1:pvr1.0:rvnAppleInc.:rnMac-F42C88C8:rvrProto1:cvnAppleInc.:ct2:cvrMac-F42C88C8:
  dmi.product.name: MacPro3,1
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

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