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seb
14-05-2004, 22:23
Just installed a 2nd 21" monitor on my 9800pro card. The card has 2 outputs, 1 VGA and one DVI. This one is on the DVI output using a DVI-VGA converter.

Running both at 1280x960, but I can't get the 2nd monitor to run at any reresh other than 60Hz? It reports it as 100Hz or whatever I set it to in the display properties, but it's visibly flickery and the OSD shows 60hz.

Any ideas? Is this a limitation of my card? :cry:

Is it the case that even though they ship the card with a DVI-VGA converter and it supports dual displays that the DVI port can only output 60Hz because that's what LCDs take?

:cry:
FullMetalGasket
14-05-2004, 22:41
It shouldn't be a limitation of the DVI I'd think :confused:

My Geforce4 has twin DVI outputs, and numerous adapters to plug whatever I want into them.
I can happily run my monitor at up to 120MHz IIRC (not at high res tho!)

It's more than happy at my normal refresh of 85 MHz :nod:
seb
14-05-2004, 22:56
I think you mean Hz, not MHz :)
FullMetalGasket
14-05-2004, 22:57
Probably, it is late after all :smash:

That or I have bionic eyes :wack:
KarlH
14-05-2004, 23:13
Just installed a 2nd 21" monitor on my 9800pro card. The card has 2 outputs, 1 VGA and one DVI. This one is on the DVI output using a DVI-VGA converter.

Running both at 1280x960, but I can't get the 2nd monitor to run at any reresh other than 60Hz? It reports it as 100Hz or whatever I set it to in the display properties, but it's visibly flickery and the OSD shows 60hz.

Any ideas? Is this a limitation of my card? :cry:

Is it the case that even though they ship the card with a DVI-VGA converter and it supports dual displays that the DVI port can only output 60Hz because that's what LCDs take?

:cry:

I think its because you are using a DVI-VGA converter. Basically on a DVI cable you have DVI & also 4 pins of RGB signal. A converter takes the RGB and whacks it into a VGA signal. (ie. it doesn't convert the DVI at all) RGB is being sent sent at 60hz. Windows is reporting the DVI signal of 100hz.

I could be wrong but I think you may need a DVI monitor to get higher hz OR maybe their is some way to change the RGB output?
seb
14-05-2004, 23:17
I find it hard to believe they'd ship a card with a converter only capable of displaying an eye-watering 60hz, will delve deeper - onto the techie forums!! ;)
seb
15-05-2004, 00:09
Ah ha, sussed it. In the "monitors" ati tab under advanced it had my 2nd monitor as incapable of displaying anything over 60hz. Now have it running at a nice 85hz (wont do 100 sadly).
seb
15-05-2004, 00:17
http://www.raceshoot.com/corner.jpg

now THAT'S how computing should be :)
KarlH
15-05-2004, 00:23
http://www.raceshoot.com/corner.jpg

now THAT'S how computing should be :)

you have 3 displays and not one is showing naked ladies or hardcore car porn... not impressed :eek:
seb
15-05-2004, 00:30
blerg, could take the pic again with my backgrounds showing but really cant be arsed :)