Monitor Distortion Causes

[tweakmm]

I've got a 4 monitor setup running and I have been noticing various distortion patters depending on my refresh rates.
At 70hz there is a swirling pattern that appears to stop at one screen and then continue at its neighbor.
At 75hz there is a bar that goes up and down the screen.

What would cause this? I changed monitors with the problem sticking around so it's not a display problem.

 

[Lord Evermore]

With monitors sitting right next to each other, they may simply be causing magnetic interference with each other. Spread them out by a few feet between them, see if it goes away.

There could also be something in the wall behind them, or on the other side of the wall that's putting out a magnetic field. Move them to some other part of the room.

Or you could have some funky problem with the video card(s) or the PC, have to swap them to another machine to test.

Or maybe 75Hz is just too low a refresh for you now. At 60Hz I and lots of others can see a sort of bar moving down (or up) a screen, the way CRTs sometimes look when you look at them through a video camera, but less pronounced, as I can see the slight fading of the upper part of the screen before the beam moves back up to refresh it.

Is this a new installation?

 

[tweakmm]

It's not a new installation, although the problem has been present since it was, at least in one monitor(the one that seems to be affected most).

It might well be magnetic distortion, it seems to go away when I turn it's neighbor monitor off.
SOB.

I'd be curious to hear some other suggestions though. :thumbsup:
Thanks for the quick reply m' lord.

 

[Lord Evermore]

Monitors are great big magnetic field generators, so it's not surprising they'd interfere with each other. Kinda funny that it'd go back and forth down the line.

If you really want to have them close together, you could try putting material between them that can block magnetic fields. I can't remember offhand what stuff you can use. Just don't block the vent holes of course.

 

[tweakmm]

If anyone knows what the material is that will block the magnetic field is and a cheap place to buy it, please share.

 

[Lord Evermore]

Oh come on, at least do a google search.