[LAU] debugging conflicts Pulseaudio/Jack

[Brendan Jones]

On 01/18/2013 01:00 AM, Patrick Shirkey wrote:
>
> On Fri, January 18, 2013 10:47 am, Federico Bruni wrote:
>> Hi
>>
>> I've chosen the option 3 (route PulseAudio to JACK while JACK is
>> running) of this guide:
>> http://jackaudio.org/pulseaudio_and_jack
>>
>> BTW, http://trac.jackaudio.org/ is down since yesterday.
>>
>> It used to work fine in the past but I'm having an issue just after
>> using Stretchplayer (and therefore jack).
>> I'm on Debian testing (Gnome 3.4.2). I can't see anymore the audio
>> applet. In Settings»Audio I see that there's no output device.
>> The applications that are trying to use Pulseaudio are listed but of
>> course no sound is produced.
>>
>> jackd is not running.
>> pulseaudio-module-jack is installed and my ~/.pulse/default.pa contains
>> the following lines:
>>
>> load-module module-native-protocol-unix
>> load-module module-jack-sink channels=2
>> load-module module-jack-source channels=2
>> load-module module-null-sink
>> load-module module-stream-restore
>> load-module module-rescue-streams
>> load-module module-always-sink
>> load-module module-suspend-on-idle
>> set-default-sink jack_out
>> set-default-source jack_in
>>
>>
>> How can I debug this problem?
>> Thanks in advance
>
>
> There is a bug in Pulseaudio that is stopping pa from releasing the audio
> device.
>
> The temporary solution until it is fixed and released is to disable
> autospawn and restart pa.
>
> edit ~/.pulse/client.conf
>
> add
>
>      autospawn = no
>
>
> restart pulse with
>
>      pulseaudio -k
>      pulseaudio -D
>
> or maybe with
>
>      pasuspender -- jackd
>
>
> If that fails you may need to completely kill pulse or just restart the
> machine to get it to release the audio device. Once you have disabled
> autospawn it should only need to be done once and only if you have already
> been using pulse to listen to a some audio.
>

We have noticed a problem with audio reservation in Fedora. Ian has has 
some success with this patch (as have I) but I'm at a loss to understand 
why, it just seems to work...

http://lists.freedesktop.org/archives/pulseaudio-discuss/2013-January/015853.html