I have my cable box (Samsung TWC Box) running HDMI out into my XB1. I have HDMI ran from there to my TV (Vizio M601D-A3R). I have optical ran from my TV to my soundbar (Vizio S4251W-B4). I had no problem passing digital sound to my soundbar before from my BR player and cable box. Now, I'm not getting digital from my cable box, nor the xbox as far as I can tell.
When my video was set to auto-select, it would not allow me to enable the 5.1 uncompressed. When I set it to HDMI manually, I can select 5.1 uncompressed. Either way, I'm not getting a digital signal. Any ideas on if XB1 can support this, or if it's a settings issue?