On Thu, 17 Mar 2011 14:03:59 +0000, chris wrote:

On 17/03/11 10:00, John Stumbles wrote:
How does the PC know what sort of monitor it's driving?

From what I understand, new display port connections actually
communicate between card and monitor, and the card will refuse to drive
things that aren't capable.

Look up DDC.

I think you'll find if the card doesn't get a response it assumes a safe
default like VGA 640x480 at 60Hz which will get you a good enough display
to use for debugging and fixing things, and is supported by almost any
monitor.

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