Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

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

Is there a device I can buy that will convert the analog signal to digital?

share|improve this question

There are, but they are quite pricey. For example:

VGA to DVI Converter/Scaler

VGA / HDtv To Dvi-i Scaler / Converter

VGA to DVI Converter

A simple VGA<->DVI adapter will work the other way (DVI output to VGA display).

share|improve this answer
Thanks. I guess it'll just be cheaper to buy a second cheap monitor then! Makes me wonder why the hell Dell would put a VGA port on a new >$1000 laptop that has a discrete graphics card... – Corey Apr 22 '10 at 14:54
No HDMI port either? – coneslayer Apr 22 '10 at 15:33
DVI -> VGA assumes that the DVI port outputs a DVI-I or DVI-A signal. Many cards do, but there are a few that are DVI-D only and require active conversion. – afrazier Apr 22 '10 at 15:39

You may find that a USB-to-DVI video adapter costs less than either a new monitor or a full-on VGA-DVI converter.


This works best if you are using the laptop's external display primarily for office work, web browsing, or other non-intensive graphics applications. I would not recommend it for 3-D gaming or for watching movies.

share|improve this answer

Yes, there seem to be Adapters available.

share|improve this answer
That adapter will only work if the monitor accepts an analog signal over a DVI connector. Most don't. – coneslayer Apr 22 '10 at 14:46
Yeah, I bought a similar $5 adapter and it did not work :( – Corey Apr 22 '10 at 14:53

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.