I can't find anything about this issue. My receiver does support discrete audio, I get the test surround sounds coming out of my speakers on the Wii u menu, except nothing comes out of the subwoofer. Zombiu surround sounds awesome but again, my subwoofer is silent. I do have it set to being on in the receiver. I'm connected with hdmi cables, I'm just curious if anyone else have this problem? I'd like to get that extra oomph out of the subwoofer if possible. Only was as of now to get the subwoofer to work is if my receiver isn't set to direct or multichannel. But then I lose the surround.