mactel-support team mailing list archive

[Alex Murray <murray.alex@xxxxxxxxx>]

@Luke (themuso) - is the provided output's from alsa-info.sh enough or
do you need more info? I am relatively comfortable hacking on kernel
stuff (although have never really played with audio drivers) so if there
is anything you want me to try, let me know as it would be great to try
and get this fixed. Also any ideas you have as to how to go about fixing
this would be great as I can try and implement any possible solution
that you might think of, but I don't have any real experience with the
linux sound system (let alone the hda driver) to even know where to
begin looking to try and solve this so any pointers / hints you could
give would be greatly appreciated.

-- 
Left speaker doesn't work, controls mixed up on Apple MacBook[Pro] (5,1)
https://bugs.launchpad.net/bugs/337314
You received this bug notification because you are a member of Mactel
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