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

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?

> 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.

> 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.

Jonathan
(FFADO developer)

1389112756.22350_0.ltw:2, <20140107163856.GN25567 at marvin dot atrad dot com dot au>