The 4-port KVM switch I purchased works, but it does not broadcast EDID information to all connected devices. So when you switch sources, the previous source behaves as if the monitor was fully unplugged, and the new source behaves as if the monitor is plugged back in. This moves icons and windows. If one of the sources is a multi-monitor configuration, all windows and icons are moved to the remaining monitor that is not part of KVM. And the worst thing is that the switching time is very long because the computer has to readjust the monitor every time it switches.
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