Vertical lines on display with Asus V6800 Pure

[theshamu]

I posted this also in the Video Category (not sure which is more appropriate).

I have an Asus V6800 Pure AGP card. It seems always leave vertical lines on some part of displays - icons, BMPs, web pages. Here's is an EXAMPLE. As you can see it makes reading a page rather difficult.
The problem goes away if I use 256 colors for display, but shows up under high color or true color.
It does not seem to be a driver problem, and it's not the fault of motherboard - tried two boards, one Iwill board, one Asus(!) board.
I suspect it's hardware problem, and Asus is no help (well, they never responded).
Any suggestions, ideas or thoughts?

 

[MacaroneePenguin]

I'm assuming that you've tried the latest drivers for the card?

What about AGP drivers for your motherboard? Have you tried that too? If not, there's a procedure to this. Make sure you have all Video drivers uninstalled. Install the latest AGP drivers and THEN install the latest video drivers. Usually, if you do it the other way around it could mess with your system.

If that doesn't work and you've already tried two motherboards then it's possibly a hardware problem. Have it exchanged/returned.

 

[corkyg]

Looks like a video synchronization problem . . . what refresh rate do you have your monitor set at? Try 85. With that try 1152 x 800 @ 16 Bit (Hi-Color) and see what happens. That is how I run my Asus V6800 Pure in XP-Pro.

 

[theshamu]

MacaroneePenguin
I'll give it a try. I did have some install problem with the Via 4-in-1 driver on the Iwill board. Asus has stopped updating the driver since XP has native support for the card. But I did try nVidia's latest driver...
Anyways, worth a shot.

corky-g
Don't remember if I tried that specific combination. I have 75 Hz refresh rate, 1024X768 now. But will try your suggestion.

Thanks guys!

 

[MacaroneePenguin]

Also, make sure the VGA port connection is good. Take it out, blow out any possible dust on both sides of the connection. It could be as simple as a bad physical connection.

But corky's refresh rate solution sounds about right also.

 

[theshamu]

All right! Problem solved!! But, I still don't know what was the problem though -- it's the classic act of changing too many things at one time and you don't know what actually worked in the end...

OK, I first tried changing color depth, screen resolution, refresh rate... Tried every options and all combinations (took a long time), but no effect. I did this before, but not as thoroughly as today.

Next I started unloading drivers and reinstall them. Change the video drivers didn't help. Next I uninstalled the Via AGP system driver, together with the Video driver. Powered down. Then I decided to open up the case and do some cleaning. Well, as soon as I restarted the computer and waited through the device installation, changed to 1280X1024, true color, @72Hz (max my Viewsonic 17-in can handle), and there's no line!!!

Very happy. Thank you MacaroneePenguin -- it's either the AGP driver or the dirt (although I doubt that since I clean my PC pretty often -- just have to use those free cans of compressed air!), but glad you pointed it out.

Thanks for all those offered help!

 

[MacaroneePenguin]

I'm glad it's fixed