HDMI audio from PC to TV

[janeser357]

How do I change my HDMI display from my GTX 660 ti so that it reads my TV audio as 5.1? I can't use optical because I have multiple devices connected to a hub and my home theater system only has 1 optical input.

 

[janeser357]

MERGED QUESTION
Question from janeser357 : "HDMI audio to home theater system issue"

HDMI audio to TV to home theater system not in 5.1. I have my pc connected to my TV and then connected to my home theater system. My HDMI display is a GTX 660 ti and connecting directly to the home theater system isn't an option as I have multiple devices connected to the tv. There is no option in my settings to set 5.1 or anything other than 2 speakers. The Tv is a LG if that helps. Thanks