[mythtv-users] video distortion

[Brian Wood]

On Jun 7, 2006, at 9:00 AM, Will Constable wrote:

> I’m running two different resolutions, spanning desktops on vga and  
> s-video.  This could be the problem I suppose – would unplugging  
> the vga monitor do the trick or do I have to boot with the output  
> disabled?
>
>

It's basically a try-and-see situation.

What you are seeing is the horizontal sync bar from your vga video  
floating through your S-Video signal. It all makes sense once you  
mentioned that you're using two monitors.

The cross-coupling can happen in different ways. One is simply  
magnetic coupling between the two monitors, see what happens if you  
simply power down the VGA monitor.

The only way to fix that type of problem is to move the monitors  
further away from each other, or use some type of magnetic shielding  
such as "mu-metal". Using better shielded monitor(s) would help as well.

You could also be getting cross-talk between the cables, using better  
shielded cables might help this sort of problem.

The cross-talk could also be happening in the video card itself, but  
a newer "better" card might or might not be better shielded.

Like I said, you will just have to experiment and see what helps.
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