Public bug reported:

The internal speakers do not automatically mute when headphone is plugged in.
Also, not all sound is played on the headphones:
1. When changing the volume through the laptop (AAO D150) keyboard, only the 
internal speakers give the feedback.
2. When clicking a raio button on the apport interface, bot headphones and 
internal speakers produce the feedback sound, but when changing radio buttons 
with the keyboard, only the internal speakers give the feedback sound.
I've tried adding the following lines to  but no option has worked:
- options snd-hda-intel model=acer
- options snd-hda-intel model=acer-aspire
- options snd-hda-intel model=acer-aspire position_fix=1
- options snd-hda-intel model=acer-aspire position_fix=2
Also, the headphones jack does not appear as an output device in "sound 
settings".

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.8.0-22.33-generic 3.8.11
Uname: Linux 3.8.0-22-generic i686
ApportVersion: 2.9.2-0ubuntu8
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  raz        3503 F.... pulseaudio
 /dev/snd/pcmC0D0c:   raz        3503 F...m pulseaudio
Date: Fri May 24 17:00:36 2013
MarkForUpload: True
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Built-in Audio - HDA Intel
Symptom_Jack: Green Headphone Out, Left
Symptom_Type: No auto-mute between outputs
Title: [Aspire one, Realtek ALC272X, Green Headphone Out, Left] No automute
UpgradeStatus: Upgraded to raring on 2013-04-27 (27 days ago)
dmi.bios.date: 02/02/2009
dmi.bios.vendor: Acer
dmi.bios.version: V1.03
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Aspire one
dmi.board.vendor: Acer
dmi.board.version: V1.03
dmi.chassis.type: 1
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.03
dmi.modalias: 
dmi:bvnAcer:bvrV1.03:bd02/02/2009:svnAcer:pnAspireone:pvrV1.03:rvnAcer:rnAspireone:rvrV1.03:cvnAcer:ct1:cvrV1.03:
dmi.product.name: Aspire one
dmi.product.version: V1.03
dmi.sys.vendor: Acer

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


** Tags: apport-bug i386 raring

** Description changed:

  The internal speakers do not automatically mute when headphone is plugged in.
  Also, not all sound is played on the headphones:
  1. When changing the volume through the laptop (AAO D150) keyboard, only the 
internal speakers give the feedback.
  2. When clicking a raio button on the apport interface, bot headphones and 
internal speakers produce the feedback sound, but when changing radio buttons 
with the keyboard, only the internal speakers give the feedback sound.
  I've tried adding the following lines to  but no option has worked:
  - options snd-hda-intel model=acer
- - options snd-hda-intel model=acer-aspire 
+ - options snd-hda-intel model=acer-aspire
  - options snd-hda-intel model=acer-aspire position_fix=1
  - options snd-hda-intel model=acer-aspire position_fix=2
+ Also, the headphones jack does not appear as an output device in "sound 
settings".
  
  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.8.0-22.33-generic 3.8.11
  Uname: Linux 3.8.0-22-generic i686
  ApportVersion: 2.9.2-0ubuntu8
  Architecture: i386
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  raz        3503 F.... pulseaudio
-  /dev/snd/pcmC0D0c:   raz        3503 F...m pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  raz        3503 F.... pulseaudio
+  /dev/snd/pcmC0D0c:   raz        3503 F...m pulseaudio
  Date: Fri May 24 17:00:36 2013
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_Card: Built-in Audio - HDA Intel
  Symptom_Jack: Green Headphone Out, Left
  Symptom_Type: No auto-mute between outputs
  Title: [Aspire one, Realtek ALC272X, Green Headphone Out, Left] No automute
  UpgradeStatus: Upgraded to raring on 2013-04-27 (27 days ago)
  dmi.bios.date: 02/02/2009
  dmi.bios.vendor: Acer
  dmi.bios.version: V1.03
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Aspire one
  dmi.board.vendor: Acer
  dmi.board.version: V1.03
  dmi.chassis.type: 1
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.03
  dmi.modalias: 
dmi:bvnAcer:bvrV1.03:bd02/02/2009:svnAcer:pnAspireone:pvrV1.03:rvnAcer:rnAspireone:rvrV1.03:cvnAcer:ct1:cvrV1.03:
  dmi.product.name: Aspire one
  dmi.product.version: V1.03
  dmi.sys.vendor: Acer

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https://bugs.launchpad.net/bugs/1183840

Title:
  [Aspire one, Realtek ALC272X, Green Headphone Out, Left] No automute

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