Running windows 10 and I have a xonar se sound card plugged in. I have it outputting audio via optical to my 5.1 set up.
When I go to properties and supported formats and have it test the DTS audio and Dolby digital, i do get 5.1 surround sound.
But when I go to advanced I only have 2 channel options. Also when I go intro control panel and select the spdif out "configure" is greyed out.
I know the 5.1 works, I just cant select it. And I do have it updated to the latest drivers