[pulseaudio-discuss] [PATCH] alsa-mixer: Allow speaker port to control "Front Speaker"

David Henningsson david.henningsson at canonical.com
Fri Jan 13 00:49:37 PST 2012


On 2012-01-12 20:44, Colin Guthrie wrote:
> 'Twas brillig, and David Henningsson at 12/01/12 09:58 did gyre and gimble:
>> "Front Speaker", "Surround Speaker" seems to be a common enough name
>> to make it into alsa-utils, so we should probably care about it as
>> well. In this case, there was a macbook pro whose speakers didn't work
>> without these controls.
>
>
> Seams reasonable.

Committed?

> On a related note, have you ever come across a "Master Front" on your
> travels?
>
> To me it doesn't make much sense (was is "Master Front" that isn't
> covered by "Front"?). Perhaps it's just a mislabelled "Master" - don't
> suppose you remember fixing or seeing a fix for this?
>
> https://bugs.mageia.org/show_bug.cgi?id=2119

Yes. The question is about what name controls the Front channel of the 
Line-Out port but not the Speaker/HP, and what name controls the Front 
channel of all those outputs (but still not Surround).

If I understand Takashi right, he wants "Front" to control all three of 
them, whereas "Front Line-Out" would control only the first one. The 
reality is that "Master Front" controls all three, the behaviour of 
"Front" is inconsistent, and "Front Line-Out" does not exist.

We've distro patched "Master Front", but if my memory does not fail me 
you chose not to upstream it when we went through the Ubuntu patches 
together at the Desktop Summit.

-- 
David Henningsson
http://launchpad.net/~diwic


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