On Thu, 29 Apr 2021 19:32:26 +0200, Ralf Mardorf wrote: >Does your card provide coaxial and optical SPDIF? IIUC after googling for your card, it has got an optical SPDIF output only and no ADAT that could also use this port. IOW a possible Ω coaxial issue can be ruled out, as well as a wrong routing. You also don't have got a word clock port, so a termination resistor issue can be ruled out, too. That being said, a cable's Ω or a termination resistor issue anyway unlikely could be culprits related to your problem, I just was curious. alsamixer shows "coaxial", "optical" and "internal" for my RME's SPDIF. I'm to lazy to test or google what "internal" is for. A wild guess, a connection for a CD/DVD drive. So maybe another pitfall?! _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user