well spotted @dvo, looking at that as well, definitely not normal.
May 27 17:32:35 volumio kernel: usb 1-1.3: __uac_clock_find_source(): selector reported illegal value, id 40, ret 6
May 27 17:32:35 volumio kernel: usb 1-1.3: parse_audio_format_rates_v2v3(): unable to find clock source (clock -22)
May 27 17:32:35 volumio kernel: usb 1-1.3: __uac_clock_find_source(): selector reported illegal value, id 40, ret 6
May 27 17:32:35 volumio kernel: usb 1-1.3: __uac_clock_find_source(): selector reported illegal value, id 40, ret 6
May 27 17:32:35 volumio kernel: usb 1-1.3: __uac_clock_find_source(): selector reported illegal value, id 40, ret 6
May 27 17:32:35 volumio kernel: usb 1-1.3: parse_audio_format_rates_v2v3(): unable to find clock source (clock -22)
May 27 17:32:35 volumio kernel: usb 1-1.3: __uac_clock_find_source(): selector reported illegal value, id 40, ret 6
May 27 17:32:35 volumio kernel: usb 1-1.3: __uac_clock_find_source(): selector reported illegal value, id 40, ret 6
On Lynx’s forum “We don’t directly support Linux with any of our products.”
There are more reports, just google the above string “We…” and “Lynx”.
Not much hope I’m afraid…