mactel-support team mailing list archive

[Chris Lasher <chris.lasher@xxxxxxxxx>]

If you updated your kernel in Jaunty, you will have to re-install the
ALSA modules with another round of `sudo make install`. Also, see my
note above that I have to move the "Master" channel up until sound
finally crackles on for the rest of the system, including the
headphones.

Note that this patch still doesn't work perfectly for me, since
apparently my soundcard has "a different PIN assignment"; e.g., I'm
getting noise in the headphones and my internal mic doesn't work.

-- 
Left speaker doesn't work, controls mixed up on Apple MacBook[Pro] (5,1)
https://bugs.launchpad.net/bugs/337314
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Status in ALSA driver: Unknown
Status in Mactel Support: Confirmed
Status in “alsa-driver” 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