[pulseaudio-discuss] Pulseaudio overwrites alsa settings

orschiro at googlemail.com orschiro at googlemail.com
Sun Sep 18 13:09:00 PDT 2011

You guys were right. Obviously it is a problem of the current stable
release. I tried the beta 0.99 and my internal mic volume is now
greater than zero.

However, now my mic channel is at zero which doesn't affect the
recording though.

But I still not understand how pulseaudio and alsa work together.

For example, how can I make channel volume adjustments which are
persistent and recognised by pulseaudio?

Pavucontrol gives me not all the options.


2011/9/18 David Henningsson <david.henningsson at canonical.com>:
> On 09/17/2011 03:37 PM, Colin Guthrie wrote:
>> 'Twas brillig, and orschiro at googlemail.com at 17/09/11 11:51 did gyre
>> and gimble:
>>> Unfortunately I did not receive your reply.
>>> Here is the output of
>>> amixer -c0 http://pastebin.com/zv8x7Cht
>>> and of pacmd ls http://pastebin.com/8spQJd1W
>>> As a GUI I use pavucontrol but there I cannot change the volume of the
>>> internal mic. With alsamixer on the other hand I can adapt it.
>>  From what I can tell, your amixer output is claiming to only have one
>> control capable of adjusting "capture volume" (cvolume) and that is the
>> "Digital" control. Both the "Internal Mic" and "Docking Mic" are showing
>> up as pvolume (playback volume) and thus PA is not using them for
>> adjusting the capture volume.
>> David, have I interpreted this right? Is this just a problem at the alsa
>> level?
> "Capabilities: volume"
> ...means a volume control that affects both playback and recording. So that
> looks ok.
> Orschiro should have both an "Internal Mic" port and a "Docking Station Mic"
> port, and be able to select the "Internal Mic" one. From the pacmd ls it
> doesn't seem to be that way. This is probably a bug, but since no more
> releases of 0.9.23 are planned, I wouldn't spend time on it unless it is
> also a problem in 0.99.x.
> --
> David Henningsson, Canonical Ltd.
> http://launchpad.net/~diwic

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