Amarok + PulseAudio: volume control changes global volume

Colin Guthrie gmane at
Wed Jun 23 14:36:49 BST 2010

'Twas brillig, and Nikos Chantziaras at 23/06/10 13:01 did gyre and gimble:
> On 06/23/2010 02:56 PM, Ian Monroe wrote:
>> On Wed, Jun 23, 2010 at 6:47 AM, Nikos Chantziaras<realnc at>  wrote:
>>> My MSN client doesn't offer any kind of volume adjustment, so I don't
>>> see how PA can help here.  If I lower the volume of Amarok, it lowers my
>>> sound card's volume, which in turns lowers my MSN client's volume, which
>>> achieves nothing compared to what I wanted to achieve: Amarok having a
>>> much lower volume than my MSN client.
>> It won't lower your sound card volume below what it was before.
> It does.  I have it set to 100% (0dB).  When I start Amarok and change 
> the volume there, Amarok's volume control changes my sound card volume 
> to the same percentage.

Hmm, in that case, something somewhere is busted.

Flat volumes will generally be able to increase your device volume but
wont decrease it.

Can you mail me a debug log from pulseaudio when you make the changes.
If possible can you replicate the problem using a PA mixer only? e.g.
start things running, then use pavucontrol to adjust the stream volume
(the playback tab, not the output devices tab).

The debug log will generally show the volume changes and ultimate what
app causes them etc.

It is however very strange that the master volume is directly linked to
the stream volumes.

Incidentally, I presume you are using a fully integrated phonon complied
with pulseaudio support? (i.e. the volume calls truely are going to
pulseaudio - using pavucontrol to change the stream volume rather than
amaork directly should prove this).




Colin Guthrie

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