Instrument plugin plays one MIDI note then goes silent

[bluebirch]

I have just begun playing around with LMMS on Ubuntu 14.04. Some instrument plugins – the LB302 and the Sf2 Player – works just fine when playing tracks created in the piano roll, but when configured to trigger on MIDI input, they only play one single note (the first key I press and release on the MIDI keyboard), then goes silent.

LMMS and the instrument plugin window indicates that it receives MIDI events from the keyboard (a classic Roland D-50, by the way), but it remains silent.

Other instrument plugins, such as TripleOscillator, works just fine. It is – as far as I have tested so far – only the LB302 and the Sf2 Player.

Does anyone have any clue as to what might be the problem – or instructions how to further diagnose this error? I don't seem able to get any debugging output from LMMS or the instrument plugins.

Kind regards
Stefan

[softrabbit]

Let's see... first of all, your LMMS version is of interest here. What do you get trying this?

Code: Select all

lmms --version

And second, is this the stock Ubuntu version or something from a PPA?

Third, just to make sure, all plugins work when playing internally in LMMS, i.e. clicking the piano keys in the intsrument editor or playing a piano roll?

If the answer to that last question is "yes", next up would be something like aseqdump to get a look at the MIDI data that comes in from the keyboard.

[bluebirch]

It's the version of LMMS that can be found in the standard repository for trusty:

Code: Select all

$ lmms --version

Linux MultiMedia Studio 1.0.0
(Linux x86_64, Qt 4.8.6, GCC 4.8.2)

Copyright (c) 2004-2014 LMMS developers.

All plugins works as expected when I click the on-screen keyboard or use the piano roll to manually enter notes -- BUT after having been triggered by MIDI once, the instrument plugin is silent, even when playing on the on-screen keyboard. Saving and reloading the project makes the instrument plugin come alive again -- until triggered by MIDI again.

I'll see if I can compile version 1.1.3. Maybe that helps.

[bluebirch]

And another thing:

And second, is this the stock Ubuntu version or something from a PPA?

All PPA:s I found was rather outdated. Is there a actively updated one?

[softrabbit]

All PPA:s I found was rather outdated. Is there a actively updated one?

KXStudio has 1.1.3: https://launchpad.net/~kxstudio-debian/ ... ter=trusty

...but I really can't say if it's a wiser choice than compiling. Depends on how much the PPA wants to change on your system.

[bluebirch]

LMMS 1.1.3 compiled just fine, and it seems to work as well. At least I can play the Sf2 Player via MIDI now.

Thanks!

[musikbear]

I have just begun playing around with LMMS on Ubuntu 14.04.

Welcome to the forum bluebirch! For you all important links:
http://lmms.io/forum/viewtopic.php?f=1&t=4740