I just bought a DELL Studio XPS and I am trying to setup two monitors to it. I got the ATI Radeon 4850 because it had two DVI ports. What i didnt realize is my old 17" Dell LCD requires me to have the DVI and the VGA connection in or it turns off. I havn't tried yet but i am figuring my new 23" widescreen Dell LCD is going to do the samething(It's supposed to arrive later today via Fedex).
What hardware do I need to make this work. I want my second monitor as an extension, not a mirror. Thanks any help will be appreciated.
Perhaps you did not quite have 1 plugged in all the way, so it was never getting a signal? Then when you unplugged the other one, all went black. Like I said, it made no sense. You monitor does not need both cables attached to work.