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[Guy <1302090@xxxxxxxxxxxxxxxxxx>]

Subwoofer with two channels ? Anyway, I hear probably from both channels
because the front speakers have left/right and (the supposed subwoofer)
surround speaker has left/right to. I definetly don't know how many
speakers/ways are in that box, as far as know, two front and the
subwoofer...

I'm currently on my desktop but I will test as soon as possible, to be
sure and post the results.

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https://bugs.launchpad.net/bugs/1302090

Title:
  Dell Alienware 14, Speaker sound output is mono until a headphone jack
  is plugged

Status in alsa-driver package in Ubuntu:
  Confirmed

Bug description:
  Here's the required release and package information:

      Description:    Ubuntu Trusty Tahr (development branch)
      Release:        14.04

      Package: linux-image-extra-3.13.0-19-generic
      Version: 3.13.0-19.40

  When playing audio through speakers on my Alienware 14 2014, the sound
  output is in mono until I plug a headphone in any of the two available
  headphone jacks (obviously, the auto-mute option must be disabled).
  When I do so, the sound starts to play in stereo.

  I would love the sound output to be stereo by default and not be
  forced to plug anything to achieve that.

  Attached is the alsa-info.sh output for my machine.

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