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Re: [Bug 337314] Re: Left speaker doesn't work, controls mixed up on Apple MacBook[Pro] (5, 1)

 

2009/5/15 Νίκος Αλεξανδρής <nikos.alexandris@xxxxxxxxxxxxxxxxxxxxxx>:
> What I can't understand is why now Totem doesn't play music while
> Audacious and VLC do play fine. Anyway, sound system still is complex to
> get it working properly in other machines as well (as far as I read in
> various posts in ubuntu-forums).
you can check which app "blocks" alsa with
sudo lsof | grep snd/
normally only pulseaudio and mixer_app should be listed

-- 
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



References