[PlanetCCRMA] pulseaudio successfully banished to the AC97 CODEC?

Fernando Lopez-Lezcano nando at ccrma.Stanford.EDU
Tue Apr 26 09:34:38 PDT 2011

On 04/25/2011 10:04 PM, Julius Smith wrote:
> I should have said "the first server wins and the second server
> loses".  The race for me was typically Chrome vs. JACK. - jos

I imagine that Chrome is trying to use alsa directly and not through 
pulseaudio. In that case all bets are off. Maybe there is a confguration 
option in Chrome? If you start Jack you should see it asking for the 
card and getting it from pulseaudio.

-- Fernando

> At 09:59 PM 4/25/2011, Julius Smith wrote:
>> Yes, I'm using Fedora 14.  I have never seen PA relinquish
>> anything.  My experience is that the first device wins and the
>> second device loses.  Could I have some old configuration stuff somewhere?
>> At 09:31 PM 4/25/2011, Fernando Lopez-Lezcano wrote:
>>> On 04/25/2011 08:53 PM, Julius Smith wrote:
>>>> I just discovered an apparently valuable utility with the humble name
>>>> "Volume Control" at
>>>>       Applications / Sound&   Video / PulseAudio Volume Control
>>>> There is a Configuration tab where it appears possible to disable
>>>> devices by setting them to "off".  I disabled everything but the AC97
>>>> CODEC (the little audio chip on the motherboard), and now it appears
>>>> pulseaudio is happily using that while JACK uses the EDIROL UA-25EX
>>>> (hooked up via USB).
>>>> PA/JACK coexistence is peaceful for the time being.  Before, I had to
>>>> be careful to start JACK before something like Chrome that used pulseaudio.
>>> Is this on Fedora 14? When JACK starts PA should relinquish the
>>> card (and of course nothing will come out of Chrome audio - I have
>>> not tried Chrome myself). What error messages were you getting?
>>> Perhaps Chrome is not using PA for audio? (in that case all bets are off).

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