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Greetings,

I bought a 2 ports KVM because I need to control 2 PCs. Everything works fine except the signal does not pass through for my Viewsonic flat screen Monitor. I had to buy 2 VGA to DVI adapters and one DVI to VGA adapter becasue the cabling is all VGA/USB.

Anyone knows if there is a fix for that? I checked on the web and got unlucky.

Thank you
 

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For the DVI, is it DVI-A, DVI-D, or both for each PC and the monitor? The DVI to VGA are probably only connecting the analog pins.

http://en.wikipedia.org/wiki/Digital_Visual_Interface

Do you have pins C1-C5 on everything?

I gave up on external video switching long ago. The good stuff is expensive, the affordable stuff causes problems (if it works).

I wound up using a USB RS-232 adapter, Synergy, and a small script. Synergy makes one keyboard and mouse the master for everything, the script watches the Synergy log for screen switches then blasts RS-232 data down to the monitor for input switching. Similar switching can be done via IrDA if needed.
 

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The DVI to VGA are probably only connecting the analog pins.
This.

If your monitor is DVI-D, then you're SOL. It needs to either support DVI-A or DVI-I
 
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