At first I would clean the card configurations sudo -i mv /etc/asound.conf /root/ mv ~/.asoundrc /root/ mv /etc/modprobe.d/alsa-base.conf /root/ and after that add a /etc/modprobe.d/alsa-base.conf with this content only: options snd slots=snd_ice1712 Reboot and then start jackd again, using hw:0.