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#515 LMMS 0.4.14-rc1 on Linux/i386 ALSA, ZASFX have no sound

Git master branch
Behavior (260)
Mike Choi

If you open following lmms project and than you mute BB track and if you try to play ZASFX track first (via Song Editor, Piano-Roll or whatever) there is no sound, until you turn on the BB track as well.


  • I can't reproduce this bug using the stable branch, I'm sorry. The master branch will not be continued so if this happens with the master branch, please ignore it.

    Very nice demo BTW! I'd like to include the files in the LMMS distribution - any objections from your side?

    • assigned_to: nobody --> tobydox
    • status: open --> pending-works-for-me
  • Mike Choi
    Mike Choi


    This is not my file, but author of it Salehen Rahman ( distributes it via cca licence here.

    I tested that on Alsa, SDL and also PulseAudio and stable branch now, but all same results.
    (Linux Mint 12 32bit, Qt 4.7.4, GCC 4.6.1 and wine (wine-dev) 1.3.28)

    When I open project and before I do anything else, e.g. when I mute the BB track via Song Editor and when I hit space bar than or press the play button, there is no sound from ZynAddSubFX. Until i make a sound on BB track, than everything seem okay again.

    Also I should note there is no sound from ZASFX, when I try to play it before BB track otherwise, e.g. when I am adding new notes on piano-roll first, etc or when I open ZASFXs internal virtual keyboard, there is again no sound from it, possibly specific problem of ZASFX? but until I make sound on BB track.

    Project is originally from LMMS 0.4.10 and when I am loading it, there is this debug message printed on console:

    QtXmlWrapper::loadXMLfile(): empty data

  • Mike Choi
    Mike Choi

    • status: pending-works-for-me --> open-works-for-me