Video Card Flicker, Card or Cable?

[21stHermit]

I have this Video Card and it flickers on DVI but not VGA/D-Sub. When I view a spreadsheet, the border lines flicker, but only using the DVI output, not the VGA output.

I don't have a second DVI cable to test the cable. Is it more likely the DVI output or the DVI cable that is the problem?

 

[MarcVenice]

Hmm, not sure how related this is, but my 8800gts 320mb with 2 dvi-outs runs fine using a dvi to vga adapter ( for my al2016w lcd monitor ) but as soon as I hook up my LCD tv with a DVI to HDMI connector, my LCD monitor will start flickering? If I unhook the LCD tv my LCD monitor will immediatly stop flickering.

 

[21stHermit]

Thanks for the reply.

I have a single 24" LCD monitor with 2 - D-sub and 1 - DVI ports, I assumed best to run DVI vs. analog. Not only do I get flicker, but sometimes it'll go blank for short periods. Never had a second PC running with the problem PC or connected to a TV.

At first I thought the LCD was dying, so I hooked up another PC (Vista) with integrated analog and like blew me away so sharp and no flicker. So then I hooked up the analog port of my card, again very sharp and no flicker.

Therefore I concluded it is DVI related, either the DVI port or the cable. Sound correct?

 

[xavier es]

when I switched to dvi i had flicker and lines all of a sudden, turns out moving the cable further from the existing cables, especially the usb keybd cable cleared it right up. check for interference from other unsheilded cables.

 

[21stHermit]

Thanks for the insight.

I tried moving the DVI cable, away from all other cables, the flicker remained. I even draped the cable over the monitor, didn't help. I'll do some more testing in the coming days to see if it is cable crosstalk, but seems not.