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Dual VGA monitors with Quadro FX 580?

Dual VGA monitors with Quadro FX 580?

I have a machine with a Quadro FX 580 card (DVI and two Displayport). Attached to it are two 19" Acer screens, which are both (annoyingly) VGA. The first one works perfectly, with a DVI->VGA adaptor.

Asked by: Guest | Views: 19
Total answers/comments: 1
Guest [Entry]

"Edit: A DVI plug has a combination of digital and analog pins. There are different versions, sometimes pins are missing. A DVI -> VGA converter only channels the analog signal to the right pins, it doesn't (and can't) convert digital to analog. Your card has to provide both Digital and Analog: DVI-I.

A Displayport output is a digital output, it does not contain an analog signal. So the DP->DVI converter can only supply the digital-only DVI-D.

So, sadly, chaining DP -> DVI -> VGA cannot work.

It probably has only 1 A/D converter, that is kind of common for such cards. A D/A converter is relatively expensive. That would mean you can't get it to run 2 analog monitors."