Re: [Jack-Devel] JackEngine::XRun: client = pure_data_0 was not run: state = 2 JackAudioDriver::ProcessGraphAsyncMaster: Process error

On Tue, Jan 7, 2014 at 6:38 PM, Jonathan Woithe <[hidden]> wrote:

> Hi Alexandros
>
> On Tue, Jan 07, 2014 at 06:31:51PM +0200, Alexandros Drymonitis wrote:
> > I'm running jack to use my firewire sound card (presonus firebox) with
> pure
> > data running this in the terminal: $ jackd -dfirewire
> > and jack runs with the firewire. But when I open pure data in another
> > terminal window with this $ pd -rt -jack
> > I get this in jack's terminal:
> > JackEngine::XRun: client = pure_data_0 was not run: state = 2
> > JackAudioDriver::ProcessGraphAsyncMaster: Process error
> > and the audio every now and then quits for half or a whole second and
> then
> > comes back.
>
> I *think* this indicates an issue in PureData.  However, if others more
> familiar with jackd messages indicate that it's a problem within FFADO I'll
> take this up.  If it is a FFADO problem it would be best to take the
> discussion to the ffado-user mailing list (detail are in the "Contact" link
> the ffado.org.
>
> After the dropout, is PureData usable and does the Firebox play back
> PureData
> audio?
>
Yes Pure Data is usable and the Firebox does play the Pure Data audio

>
> > I also tried jack with audacity and I got drop outs there as well.
>
> Is the error message similar?  If it is it would tend to suggest that the
> problem is not within PureData or audacity.
>
There's no error printed when I open Audacity, but when I close it this is
printed in Jack's terminal:
JackProcessSync::LockedTimedWait error usec = 426660 err = Connection timed
out
JackEngine::ClientDeactivate wait error ref = 3 name = PortAudio

No idea if this should be or not..also, when I quit Pd though, I get this
in Jack's terminal:
JackEngine::XRun: client = pure_data_0 was not run: state = 1
JackAudioDriver::ProcessGraphAsyncMaster: Process error
Cannot write socket fd = 44 err = Broken pipe
Cannot write socket fd = 44 err = Broken pipe
Cannot write socket fd = 44 err = Broken pipe
Cannot write socket fd = 44 err = Broken pipe
Cannot write socket fd = 44 err = Broken pipe
Cannot write socket fd = 44 err = Broken pipe
Cannot write socket fd = 44 err = Broken pipe

>
> > I'm on ubuntu 12.04 with jack 1.9.8
> > Can anyone help me out?
>
> It would be worth trying a lowlatency kernel if you're not already using
> one.  This should be available via the Ubuntu package manager.
>
Hmm, I'm a noob to Linux, some tips on how to do this? what should I type
in the synaptic package manager? If I type lowlatency I get a bunch of
stuff (linux-headers-lowlatenct, linux-image-lowlatency etc.)

>
> Jonathan
> (FFADO developer)
>
Thanks

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