Zynaddsubfx disconnects from rt-jack when changing instruments

[hanzomon4]

Binary package hint: zynaddsubfx

This problem exist in both the karmic and jaunty versions of Ubuntu. Whenever I have qjackctl running in realtime mode attempting change instrument patches in zynaddsubfx causes the it to be disconnected from jack. The only way to reconnect it is to restart zynaddsubfx.

Now if I run qjackctl without realtime enabled everything works fine, except the xruns from not being in realtime of course.

Here is what I see when I run zynaddsubfx from the terminal

ZynAddSubFX - Copyright (c) 2002-2005 Nasca Octavian Paul
Compiled: Feb 11 2008 13:36:57
This program is free software (GNU GPL v.2) and
    it comes with ABSOLUTELY NO WARRANTY.

Try 'zynaddsubfx --help' for command-line options.
Sound Buffer Size = 128 samples
Internal latency = 2.9 ms
ADsynth Oscil.Size = 256 samples
SSE2 detected
Internal SampleRate = 44100
Jack Output SampleRate= 44100
cannot lock down memory for RT thread (Cannot allocate memory)
zombified - calling shutdown handler ###Note### This zombifed thing happens as soon as I change instruments

[hanzomon4 (hanzomon4)]

Everything is so much better in the current git, I'd suggest moving to it as soon as possible as everything works

[hanzomon4 (hanzomon4)]

The current package is simply broken and does not work

[lieven moors (lievenmoors)]

I want to confirm that zynaddsubfx is broken in this way in karmic.
The only thing that prevents zynaddsubfx from being zombified when
changing patches is giving it a higher realtime priority than jack with chrt --fifo.

[lieven moors (lievenmoors)]

I think increasing the timeout in jack from 500 to 1000 ms solved my problem

[Mattia Rizzolo (mapreri)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. There have been many changes in Ubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on a currently supported Ubuntu version. When you test it and it is still an issue, kindly upload the updated logs by running only once:
apport-collect 429062

and any other logs that are relevant for this particular issue.

[hanzomon4 (hanzomon4)]

Thank you for responding. This is quite the blast from my past. I have played with the the 18.04 package version and the latest git without running into this issue again.

[Launchpad Janitor (janitor)]

[Expired for zynaddsubfx (Ubuntu) because there has been no activity for 60 days.]