VGA–USB adapter, Ubuntu 12.04?

[Johnny Rosenberg]

Have searched a bit but so far I only saw the opposite of what I want.

I have a device with a VGA output, and what I want to do is to take
screenshots from it, so I need to bring its video signal to Ubuntu
somehow, making it appear in a window that I can take a screenshot
from.

At the moment, the only way to get screenshots is to use a digital
camera and taking a picture of the screen connected to the device.

I have found some stuff that has the right connctors, but it seems
like they work the other way around, USB–VGA rather than VGA–USB.

Any hints? And of course it needs to work in Ubuntu, since I don't
have anything else.


Johnny Rosenberg