shlomofu99
asked on
Does my DVI-I connector have any blanking time overhead?
I have a Radeon 9000 pro card. The card has both a DVI-I connector, and a VGA connector. I have it connected to a LCD monitor using a DVI-I cable that's connected to the DVI-I connector on the card.
How am I to understand the data that's going thru this connector. I have two choices:
* I assume that since the connector is DVI-I, it will have support for a VGA monitor, and therefore if I reduce the blanking overhead of the card, I'll improve the card's performance.
Or
* I assume that since the card has both a VGA connector and a DVI-I connector, that the DVI-I connector will have no blanking overhead, since the manufacturer of the card will be assuming that anyone who is going to use the card with a VGA monitor, will simply use the VGA connector.
Which of these is correct?
Thank you
How am I to understand the data that's going thru this connector. I have two choices:
* I assume that since the connector is DVI-I, it will have support for a VGA monitor, and therefore if I reduce the blanking overhead of the card, I'll improve the card's performance.
Or
* I assume that since the card has both a VGA connector and a DVI-I connector, that the DVI-I connector will have no blanking overhead, since the manufacturer of the card will be assuming that anyone who is going to use the card with a VGA monitor, will simply use the VGA connector.
Which of these is correct?
Thank you
ASKER
Thanks, Sparkmaker
Yes, I'm familiar with that website. I went thru it carefully. Please understand what I'm asking:
This card has two ports, i.e. two places I can plug a monitor cable into. There is one for a VGA monitor, and one for a LCD monitor. The latter port is a DVI-I port, meaning it can handle both analog and digital. Why would Sapphire, the maker of the card, built support for a CRT into a DVI port, if right next to it is a VGA port that people who have a CRT will use? Perhaps they didn't do this, and the DVI-I port is really working like a DVI-D port?
It just doesn't make sense to put a DVI-I port there. I expected to see a DVI-D port there, not a DVI-I one
Yes, I'm familiar with that website. I went thru it carefully. Please understand what I'm asking:
This card has two ports, i.e. two places I can plug a monitor cable into. There is one for a VGA monitor, and one for a LCD monitor. The latter port is a DVI-I port, meaning it can handle both analog and digital. Why would Sapphire, the maker of the card, built support for a CRT into a DVI port, if right next to it is a VGA port that people who have a CRT will use? Perhaps they didn't do this, and the DVI-I port is really working like a DVI-D port?
It just doesn't make sense to put a DVI-I port there. I expected to see a DVI-D port there, not a DVI-I one
ASKER CERTIFIED SOLUTION
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ASKER
Thank you very much. I get it now. Dual monitor application - that was the key that I had missed.
I appreciate your helping me.
I appreciate your helping me.
This page gives an abundance of info on the subject, scroll down to the REDUCED BLANKING section .
http://www.playtool.com/pages/dvicompat/dvi.html