I need to run jackd and zynaddsubfx in a headless PI. I have an external USB audio card that works (I can play stuff with aplay blablabla.wav)
I can run jack1 with no GUI nicelly and connect stuff using aconnect. But I cannot start Zynaddsubfx with no GUI I use the -U param that is meant for that. But it says: "cannot open device". In the other hand if I use Xming to forward X11 and I don't use the -U, Zynaddsubfx opens in my windows machine (via Xming) and everything works nicelly. (same happens if I plug the raspi to a TV and startx before starting everything).
They told me that there is a version 2.4.3, but I cannot get it from apt-get, I updated and even dist-upgraded. Nothing new for me. This is what I get:
pi@raspberrypi ~ $ apt-cache policy zynaddsubfx zynaddsubfx: Installed: (none) Candidate: 2.4.0-2 Version table: 2.4.0-2 0 500 http://mirrordirector.raspbian.org/raspbian/ wheezy/main armhf Packages
And just to see that the sound card is there:
pi@raspberrypi ~ $ amixer Simple mixer control 'Speaker',0 Capabilities: pvolume pswitch pswitch-joined penum Playback channels: Front Left - Front Right Limits: Playback 0 - 151 Mono: Front Left: Playback 136 [90%] [-2.88dB] [on] Front Right: Playback 134 [89%] [-3.25dB] [on] Simple mixer control 'Mic',0 Capabilities: pvolume pvolume-joined cvolume cvolume-joined pswitch pswitch-joined cswitch cswitch-joined penum Playback channels: Mono Capture channels: Mono Limits: Playback 0 - 127 Capture 0 - 16 Mono: Playback 0 [0%] [0.00dB] [off] Capture 0 [0%] [0.00dB] [on] Simple mixer control 'Auto Gain Control',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] pi@raspberrypi ~ $