Update on the situation:
I have tested UMC202HD on win10 laptop with USB 3 Type-A and Type-C (using a hub) ports, with and without Behringer proprietary drivers, and device is always detected there.
But I have noticed similar stutters persist there too, however they are nowhere near as noticeable as on Linux - no recognizable pattern, but a stutter usually happens once every 5 to 10 minutes - sometimes more often, sometimes less often.
So, I decided to attempt to do a refund, while it is still possible.
Before sending it out I have tried a few things:
- Checking the device from Live-USB of Manjaro and Ubuntu 21.10 (latter managed to screw up my GRUB)
- Switching kernel from 5.16.2-1 to LTS 5.10.93-1 and back.
- Switching to untested branch of Manjaro and testing the interface with fresh PipeWire 0.3.45, among other things.
- Following the suggestion from reddit thread and creating a file
/etc/modprobe.d/behringer.confwith the following line:options snd_usb_audio implicit_fb=1
Neither of the attempts displayed any significant difference with detecting device or choppy audio.
If I am not mistaken, after the creating behringer.conf file, the interface refused to playback any audio at all.
I’ll update post, if I’ll get some response from the retailer.