Hi there!
I have the Dell Desktop XPS 8500
Service Tag: <ADMIN NOTE: Service tag removed per privacy policy>
And got a slighter older LG TV. It has every connection under the sun except HDMI, so I used DVI to connect them. However, I found that there is no sound. So I got an RCA cable, Y Cable, and plugged into both the green plug on the back of the Dell and tried the speaker plug as well, to no avail.
Suggestions on how to get this to work?