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

 

On Thu, May 7, 2009 at 5:39 PM, Matteo Dell'Amico <della@xxxxxxxx> wrote:
> I confirm that with the patch the left speaker works.
>
> However, when I pass to headphones, the speakers don't automatically
> mute: I have to manually mute Front from volume control. Do other users
> have the same problems or do I need to change some controls?

>From hardware point of view this is independent output. Unfortunately
HP connection
event is not passed to the declared handle. This can be solved only
inside the driver.

kacper

-- 
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