Hello everyone I have a problem getting sound from my macbook to TV im using mini-display to hdmi to connect the video for sound im using headphone jack to Optical cable but I cant get any sound anyone know what im doing wrong let me know thanks.
Unplug the cable from the TV and aim it at the wall or floor. Does it shine a spot of light? If so, then the trouble is the TV, else the trouble is computer settings.
Does your TV support taking HDMI AND optical audio on the same "channel." Most TV's only allow certain types of audio to couple with certain video inputs. Have you tried to see if the HDMI pairs with a 3.5" Minijack or RCA plugs? I know on my Samsung, HDMI1 is also labeled "DVI" and has a set of RCA red/white audio plugs to go with the port. I don't recall if the optical-in can be paired with HDMI1/DVI.
MDP-->DVI; DVI-->HDMI, and audio over 3.5mm-->RCA hooked upto HDMI/DVI1. Plus, if you're using your TV's speakers, there's no need for optical audio given they're not of high audio quality or 5.1 capability.