Does anyone have any idea what is wrong and how I can fix it? Or know where I should ask this question?
I am pretty sure it did work initially. And it works fine under Windows 10, so I know it is not a hardware fault.
When I connect the box and start QJackCtl I can see all four channels, and I can connect them to wherever I want, for instance Ardour. And if I connect a microphone to ch 1 or 2, I see meters move and I can record sound etc.
But if I connect the microphone to ch 3 or 4, the meters do not move, and no sound is recorded etc. I also tried to connect Ardour directly via alsa. Same problem.
When I connect I can see the following messages in /var/log/syslog:
Code: Select all
Jan 18 21:58:04 jojoba kernel: [48923.663788] usb 3-4: new high-speed USB device number 7 using xhci_hcd
Jan 18 21:58:04 jojoba kernel: [48923.790392] usb 3-4: New USB device found, idVendor=1397, idProduct=0509
Jan 18 21:58:04 jojoba kernel: [48923.790397] usb 3-4: New USB device strings: Mfr=1, Product=3, SerialNumber=0
Jan 18 21:58:04 jojoba kernel: [48923.790399] usb 3-4: Product: UMC404HD 192k
Jan 18 21:58:04 jojoba kernel: [48923.790401] usb 3-4: Manufacturer: BEHRINGER
Jan 18 21:58:05 jojoba mtp-probe: checking bus 3, device 7: "/sys/devices/pci0000:00/0000:00:14.0/usb3/3-4"
Jan 18 21:58:05 jojoba mtp-probe: bus: 3, device: 7 was not an MTP device
Jan 18 21:58:05 jojoba systemd-udevd[2286]: Process '/usr/sbin/alsactl -E HOME=/run/alsa restore 2' failed with exit code 99.
Jan 18 21:58:05 jojoba upowerd[2016]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4:1.1
Jan 18 21:58:06 jojoba upowerd[2016]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4:1.2
Jan 18 21:58:06 jojoba upowerd[2016]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4:1.3
Jan 18 21:58:06 jojoba upowerd[2016]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4:1.4
Jan 18 21:58:06 jojoba upowerd[2016]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4:1.0
Jan 18 21:58:06 jojoba upowerd[2016]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb3/3-4
Jan 18 21:58:06 jojoba gsd-media-keys[24529]: Unable to get default source
Jan 18 21:58:09 jojoba colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1