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-   -   How can I enforce using dual link DVI ? (http://www.nvnews.net/vbulletin/showthread.php?t=89559)

frisbee_de 04-11-07 03:38 AM

How can I enforce using dual link DVI ?
 
I have to drive a display (DFP) with a dual link DVI connection.
Unfortunately the display issues no EDID data.
Therefore the driver detects correctly: "Using single link TMDS".

How can I override this detection and enforce the usage of the dual link output?

Thanks for help.

Amuro 04-11-07 03:46 AM

Re: How can I enforce using dual link DVI ?
 
You shouldn't need to enforce it if your video card supports dual link DVI output and you're using the correct dual link cable that matches the connector type on the monitor.

frisbee_de 04-11-07 09:47 AM

Re: How can I enforce using dual link DVI ?
 
Just to clearify things:

The card is capable of driving dual link DVI (NVidia 7600GT).
The cable is suitable for analog and dual link DVI.

The system works with another display (Samsung 30" style) with full resolution.

The display in question works with another graphics board, which uses dual link regardless of any information read from the display.

Amuro, you are right, I should not need to enforce it but I must !
The display in question must receive the signal through a dual link feed. Other feeds do not work.

frisbee_de

Amuro 04-11-07 10:28 AM

Re: How can I enforce using dual link DVI ?
 
What display are you trying to use with the 7600GT? The 7600GT has a max res of 2048x1536, but some 30" LCDs needs 2560x1600. Also, looks like you're using a DVI-I cable, some displays require DVI-D cables.

frisbee_de 04-12-07 09:48 AM

Re: How can I enforce using dual link DVI ?
 
The display to drive is a 2kx2k LCD.
It works with newer models sending the correct information through EDID.
But older models only expect dual link input but do not "talk" about it.

It is no problem to drive a 30" display with 2560x1600 with the card.

Cheers - frisbee_de


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