---
title: "Are you getting the most out of your DVI port?"
date: 2007-10-17
canonical: https://michaelshadle.com/2007/10/16/are-you-getting-the-most-out-of-your-dvi-port
---

# Are you getting the most out of your DVI port?

Did you know there are five types of DVI connectors? I didn't. DVI-D dual link, DVI-D single link, DVI-I dual link, DVI-I single link, and DVI-A. Of course, I learned this the hard way, and I bet most people still haven't. I don't have much previous experience with DVI, but now that I have a Macbook Pro and an HDTV, I wanted to connect it at 1080p once I realized I could (using an HDMI port on the TV, not the VGA connection.)

I thought it would be as simple as going and picking up an HDMI to DVI cable. Not even close. After I picked one up at a local shop and brought it home, I realized it was "missing" pins. It would function still, but not at its full potential. I wondered about this and hit up [Wikipedia](http://en.wikipedia.org/wiki/Dvi "DVI @ Wikipedia"), and sure enough, there are multiple types of DVI connections.

After shopping at five different stores (including the Apple Store and the Mac Store) I realized that nobody actually sells DVI-D or DVI-I dual link cables (or even adapters) which is what is required for 1080p. I had to go down to Fry's in Wilsonville and finally was able to pick one up. 15 feet for $24.99, actually much cheaper than most of the single link options at all the other stores (and those were shorter cables, too.)

Sure enough, DVI-D dual link saves the day. I can now use the Macbook at full 1080p on my 47" Vizio GV47LF, although I have to say the text is pretty small. Using Front Row and watching movie trailers through it using all 47" is pretty neat though.