I’m not at home to check it exactly. But as is:
- Alsa (the linux audio hardware low level interface) see just one sound device (aplay -l): device 0, also called [IQaudioDAC]
- so these defaults jackd parameters in webconf looks good " -P 70 -t 2000 -s -d alsa -d hw:0 -r 44100 -p 256 -n 2 -X raw" (hw:0 is here the good parameter but the numbering of the card, eg “0”, is subject of change whenever you plug any kind of audio USB hardware for example, while hw:IQaudioDAC is stable and won’t change)
- it’s not related to your Sound config: it’s confirmed by “systemctl status jack2” wich told that jackd2 is started and running.
So it’s maybe more display related.
What’s the output of “systemctl status zynthian” ?