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rickshobbies
07-09-04, 12:05 PM
I have been reading a bit about some people having trouble with getting 1600x1200 res working on a flat panel display using the DVI output. It's not a concern for me right now as I have a 22" CRT running on the analog output of the 6800 GT, but I do plan to get a flat panel at some point this year. This may not be an actualy concern though as there are people who have gotten the BFG GT to run at that res using the DVI output.

So, if I were to opt for the 6800 Ultra I would need to use the DVI to analog adapter to run my CRT. Is there a loss of analog picture quality in using this adapter?

Thanks,

Rick

Pandora's Box
07-09-04, 12:10 PM
So, if I were to opt for the 6800 Ultra I would need to use the DVI to analog adapter to run my CRT. Is there a loss of analog picture quality in using this adapter?

Thanks,

Rick


oh didnt think of that. i saw the debate on the dvi problem. thought it wouldnt apply to me since i use crt analog connection. now you bring up the point of having to use the adapter.

Clay
07-09-04, 12:27 PM
So, if I were to opt for the 6800 Ultra I would need to use the DVI to analog adapter to run my CRT. Is there a loss of analog picture quality in using this adapter?Correct, you would need the adapter (provided with all cards BTW). And no, there is no loss of analog picture quality.

Ice Nine
07-09-04, 01:29 PM
uhhh......what? There's a problem running 1600x1200 on DVI with these cards??

Bantu
07-09-04, 01:52 PM
My Gainward ti4600 has dual DVI on it, but only one of the DVI ports can do 1600 x 1200 while the other port can only go to 1280 x 1024. here is what gamepc.com had to say on it back in 2002

[/QUOTE]
One thing we did notice about the Gainward Ultra/750XP's dual DVI implementation is that both DVI ports are not the same. Both conncetors are powered through separate Silicon Image chips, although they have different capabilities in terms of monitor resolutions. During testing, we found that only DVI port number two would allow us to achieve 2D and 3D resolutions at 1600x1200 and 2048x1536, while DVI port number one limited everything to 1280x1024. While this isn't mentioned on any of the materials, the limitation certainly IS there. Whether this is a board level implementation, or a limitation throughout the entire GeForce4 family, we're not exactly sure, as no other company has a Dual-DVI product on the market yet. Unfortunately, this means dual displays at 1600x1200+ isn't going to happen with this card[QUOTE]

i wonder if all non DUAL dvi cards are limited to 1280 x 1024 on their DVI PORTS.

rickshobbies
07-09-04, 06:29 PM
Apparently, it has been proven that 1600x1200 can be displayed. I think, if I am following the threads right, the problem has been traced to a single model Samsung LCD and also to widescreen LCDs, which may or may not necessarily be a BFG or even an nVidia problem.

As for the question about image quality with CRTs using the analog to DVI adapter, it sounds like there is no difference in image quality between that on a 6800 Ultra and the direct analog connector available on a 6800 GT.

Thanks to all!

R

JBark
07-09-04, 07:04 PM
In case anyone is curious, here's the response from BFG at [H]:
After discussing with NVIDIA, this is what we found:
1. The issue is in the EDID of the Samsung 240T and they specify 52Hz for both 1600x1200 and 1920x1200.
2. NVIDIA drivers have a 60 Hz limit
3. The limit will be removed in NVIDIA Rel. 65 drivers
4. A reg key is provided in NVIDIA's 61.74 web release