Matrix 3 monitors/keyboard to control 3 computers

The screen blanking appears to be a DisplayPort issue on Windows.

Whenever a DisplayPort screen connection-change occurs, Windows decides that it must shuffle everything around and performs a new "hand shake" with monitor. This happens every time you switch, which results in a brief screen-blanking. This appears to be a built-in Windows feature that cannot be disabled.

One possible workaround is to make the video card on each of your computer get the screen's EDID from a file instead of from the monitor.
On your graphics card's control panel, under System Topology, you most likely will find that EDID information is currently read from the monitor. Click to change it: Export the monitor's current EDID information to a file, then load it back in so that the EDID information is always read from the file, not from the monitor. After such a change, the topology will then list each display as either EDID forced or file.

Repeat this step for each monitor and each computer, making sure to use a different and identifiable file-name for each one.

Hope this helps!

 

Excellent!

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