Hi,
Here I am again 
Often when I start Carla, the engine wil not start Then it gives the error:
ERROR engine_carla::osc_register: sending failed: bāConnection refusedā
Sometimes about 5 to 10 times and then the engine starts, but often it wil not stop giving the error and the pi gets stuck.
Cheers,
Kees
Edit: Related?
Hi @Keeze101,
Normally it works for me. A few errors before connecting are normal. Itās the time that Carla takes to start.
But Carla integration is a bit problematic and not very stable yet. Iām working to improve it ā¦
Until then, play sweet and softly with it 
Or ā¦ perhaps we will replace Carla with MOD-HOST+MOD-UI very soon 
(*) Yes, the github link is absolutely related to this problem, but iāve patched partially, so it may work, more or less
I see you are using a Windows machine with XServer to connect to your zynthian box, so:
1.) Have you tried to open the ZynAddSubFX native GUI? Is it working well with your XServer?
2.) Have you tried to connect from a UNIX (Mac/Linux) machine?
OK! And Carla works badly from Linux too?
Yes. That matters! The problems with Carla are complex to explain and understand. Related to communication proccesses, queues and thread synchronization. A complete nightmare to debug ;-(
I think we really should change to MOD-UI as fast as possible @jofemodo @Keeze101
When I am back from holidays I will try to do that - hopefully with much help from @jofemodo ?
The backend (mod-host) and the frontend (mod-ui) can run independent of each other. One current problem ist that I have not got running complex synths (zynaddsubfx, linuxsampler, dexed) in mod. This will work in future releases, when mod-ui has a file browser for uploadind samples and/or configurations.
Regards, Holger
Hi @C0d3man!
For sure! I will help you to fully integrate the MOD software into Zynthian. Donāt doub it!!
And we need the big synths running on it, with bank and preset selection ā¦
But first, i have to be āpapiā ā¦ jeje! I will need some weeks at less ā¦ 
