Public bug reported:

The motherboard is an ASUS for AM3 with ALC892. The specs are here:
http://www.asus.com/Motherboards/AMD_AM3/M4A89GTD_PROUSB3/#specifications
. According to specs, it supports sense and "retasking" in all jacks.
Sense works in Windows 7. I could never find a way to make it work in
Ubuntu. Same sound goes out from rear green jack and front (headphone)
green jack. They do have independent sliders on AlsaMixer - one can
change volume of "Front" Slider (controls rear green jack) or Headphone
Slider (Front Green Jack). However, muting any of them on AlsaMixer
mutes both. Other sliders (jmiddle, bass, center) slide together with
front, although nothing is connected to them.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: alsa-base 1.0.24+dfsg-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: SB [HDA ATI SB], device 0: ALC892 Analog [ALC892 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  al        23208 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xfbff4000 irq 16'
   Mixer name   : 'Realtek ALC892'
   Components   : 'HDA:10ec0892,104383c0,00100302'
   Controls      : 35
   Simple ctrls  : 20
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xfe77c000 irq 19'
   Mixer name   : 'Nvidia GPU 11 HDMI/DP'
   Components   : 'HDA:10de0011,10de0101,00100100'
   Controls      : 16
   Simple ctrls  : 4
Date: Mon Oct 10 01:42:46 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110803.1)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:SB successful
Symptom_Card: Internal Audio - HDA ATI SB
Symptom_Jack: Green Headphone Out, Front
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: None of the above
Title: [System Product Name, Realtek ALC892, Green Headphone Out, Front] 
Playback problem
UpgradeStatus: Upgraded to oneiric on 2011-09-06 (33 days ago)
dmi.bios.date: 07/18/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2301
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A89GTD-PRO/USB3
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr2301:bd07/18/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A89GTD-PRO/USB3:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
modified.conffile..etc.modprobe.d.alsa.base.conf: [modified]
mtime.conffile..etc.modprobe.d.alsa.base.conf: 2011-10-05T15:46:37.376324

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug oneiric running-unity

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https://bugs.launchpad.net/bugs/871582

Title:
  M4A89GTD_PRO_USB3/Realtek ALC892, Green Headphone Out, Front] Playback
  problem

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