I have a R290, I am running Windows 10 and my Sony 7.1 receiver is connected via HDMI. I am on Catalyst 15.7.1.
I am only seeing 2 speakers as an option in speaker layout whereas I have a 5 speaker layout configured. My xbox1 is playing 5.1 audio output properly connected to the same receiver over HDMI.
How do I enable 5.1 audio for my computer?
The problem fixed itself. My Catalyst driver crashed and when the screen came back, I had the additional speaker options available.