Try changing the name of your HDMI-2 input from "----" to "PC". That may enable the audio ports.
Keep me posted.
I have connected DVI->HDMI cable from my computer to the TV and 3,5mm->RCA audio cable to audio slots.
For some reason i can't get sound from TV. I can't find options from TV so it would use RCA input instead of HDMI for audio.
HDMI cable is connected to HDMI2 slot and RCA cables to DVI IN slot.
I tested RCA wires at AV channels so they do work so i can't figure what is the problem.
Hopefully someone can help me.