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[Νίκος Αλεξανδρής <nikos.alexandris@xxxxxxxxxxxxxxxxxxxxxx>]

Hi Walter!

Which Macbook do you have? Do you hear sound from all speakers after
"trigger start the sound"?

This bug report refers to:

1. Macbook[Pro] 5,1, that is, the new Unibody or Aluminum or you name
it... but it's the 5,1.

2. the left speaker being "muted"

Kind regards, Nikos

-- 
Left speaker doesn't work, controls mixed up on Apple MacBook[Pro] (5,1)
https://bugs.launchpad.net/bugs/337314
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Support, which is the registrant for Mactel Support.

Status in ALSA driver: Unknown
Status in Mactel Support: Confirmed
Status in “alsa-driver” source package in Ubuntu: New

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