susyh :
Hi
Thanks but we are not connecting to a pc so I don't understand the question.
We are trying to connect external speakers via our onkyo AV receiver to our LG TV
Thanks
I did ask the question if you were trying to connect to a graphics card and got confused when you said you tried those things which made me think further you were connecting a pc. Sorry didnt realise you were responding to alex.
So your TV and receiver
As alex has said may need to turn optical on in the TV menu if theres an option. Most tvs should have that option to enable/disable and some do it automatically.
What model TV is it? And from where do you want sound to come from?