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[Dražen Lučanin <337314@xxxxxxxxxxxxxxxxxx>]

I am still affected by this bug (left speaker not working) in Oneiric on
a MBP 8,1. I tried unmuting channels in ALSA mixer and adding the alsa-
base.conf line (options snd-hda-intel model=mbp55), but nothing helps.

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https://bugs.launchpad.net/bugs/337314

Title:
  Left speaker doesn't work, controls mixed up on Apple MacBook[Pro]
  (5,1)

Status in ALSA driver:
  New
Status in Mactel Support:
  Confirmed
Status in “alsa-driver” package in Ubuntu:
  Fix Released

Bug description:
  Reporting this bug for another user...

  In MacBook and MacBookPro 5,1 (aluminium, late 2008) the soundcard
  works out of the box only with headphones, and to turn speakers on it
  is necessary to manually set the 6 channels. In that case, sound is
  heard both on headphones and right and center speaker; the left
  speaker doesn't work yet.

  This bug is confirmed by several users, see the additional information
  attached.

  della@raker:~$ lspci | grep -i audio
  00:08.0 Audio device: nVidia Corporation MCP79 High Definition Audio (rev b1)
  della@raker:~$ grep Codec /proc/asound/card0/codec#*
  Codec: Realtek ALC889A

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