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[Bug 1425221] [NEW] [OptiPlex 9020, Realtek ALC280, Green Line Out, Rear] tinny sound

 

Public bug reported:

Sound equalization is normal when using jack in front of computer, but
is "tinny" (i.e., low/nonexistent bass and midtones) when using rear
output jack  with simple two channel headphones.

Jack sense is working correctly because the internal speaker cuts out
when a cable is plugged into the rear jack (or front jack, for that
matter).

Note Dell's website says this computer has a Realtek ALC3220, as opposed
to the ALC280 which is detected by linux.  This is a clean install of
14.04, so I unfortunately I can't boot into Windows to observe its
behavior.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13
Uname: Linux 3.13.0-45-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Feb 24 12:31:49 2015
InstallationDate: Installed on 2015-01-30 (25 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Green Line Out, Rear
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: High background noise, or volume is too low
Title: [OptiPlex 9020, Realtek ALC280, Green Line Out, Rear] Background noise or low volume
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/20/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A09
dmi.board.name: 06X1TJ
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA09:bd11/20/2014:svnDellInc.:pnOptiPlex9020:pvr01:rvnDellInc.:rn06X1TJ:rvrA00:cvnDellInc.:ct6:cvr:
dmi.product.name: OptiPlex 9020
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

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


** Tags: amd64 apport-bug trusty

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https://bugs.launchpad.net/bugs/1425221

Title:
  [OptiPlex 9020, Realtek ALC280, Green Line Out, Rear] tinny sound

Status in alsa-driver package in Ubuntu:
  New

Bug description:
  Sound equalization is normal when using jack in front of computer, but
  is "tinny" (i.e., low/nonexistent bass and midtones) when using rear
  output jack  with simple two channel headphones.

  Jack sense is working correctly because the internal speaker cuts out
  when a cable is plugged into the rear jack (or front jack, for that
  matter).

  Note Dell's website says this computer has a Realtek ALC3220, as
  opposed to the ALC280 which is detected by linux.  This is a clean
  install of 14.04, so I unfortunately I can't boot into Windows to
  observe its behavior.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13
  Uname: Linux 3.13.0-45-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.7
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Feb 24 12:31:49 2015
  InstallationDate: Installed on 2015-01-30 (25 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
  Symptom_Card: Built-in Audio - HDA Intel PCH
  Symptom_Jack: Green Line Out, Rear
  Symptom_PulsePlaybackTest: PulseAudio playback test successful
  Symptom_Type: High background noise, or volume is too low
  Title: [OptiPlex 9020, Realtek ALC280, Green Line Out, Rear] Background noise or low volume
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/20/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A09
  dmi.board.name: 06X1TJ
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 6
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA09:bd11/20/2014:svnDellInc.:pnOptiPlex9020:pvr01:rvnDellInc.:rn06X1TJ:rvrA00:cvnDellInc.:ct6:cvr:
  dmi.product.name: OptiPlex 9020
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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