Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Possible Duplicate:
Does DVI carry audio?

I've got an Acer eMachine running Windows 7 64-bit and I'm hooking it up to my TV using an HDMI-to-DVI cable. Obviously, the HDMI end of the cable is plugged into my laptop and the DVI end of the cable into the TV. I've got a beautiful picture but any and all sounds come out of the speakers on my laptop. I've tried going into Control Panel -> Sounds and clicking "Show hidden devices", but the only thing that pops up is an old TV I hooked up with a normal HDMI cable. Anyone know why I can't get sound through my TV?

share|improve this question

marked as duplicate by Ƭᴇcʜιᴇ007, Indrek, Oliver Salzburg, Canadian Luke, slhck May 31 '12 at 10:00

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

The short answer is that DVI doesn't do sound, and HDMI does.

Does your TV support HDMI? Then you should just use a straight HDMI cable.

Does your laptop have an audio-out port? If the laptop has a headphone jack and the TV has RCA inputs you could get a 3.5mm to RCA cable and use that to connect them, then you should get the laptop sound out of the TV speakers.

RCA inputs look like this:

RCA inputs

share|improve this answer

DVI doesn't carry audio.

  • DVI = Digital Visual Interface (link)
  • HDMI = High-Definition Multimedia Interface (link)

You'll need to run separate lines for audio.

share|improve this answer

Basically, HDMI cables carry the Video and Audio signal, and DVI cables just conduct Video.

Take a look:

HDMI supports the transport of packets, needed for digital audio, in addition to digital video. (source: )

and also does-dvi-carry-audio-signals-as-well-as-video

share|improve this answer

Not the answer you're looking for? Browse other questions tagged .