I have a notebook running Windows 8.1 and its VGA port attached to a KVM switch for sharing an external LG 1920x1080 monitor with other machines.
I can extend the Windows 8.1 notebook desktop to this monitor successfully. However, when I switch the KVM to another machine outputting to the external monitor, the notebook resets its display settings to its single, built-in display. So I have to repeat the extended desktop settings when switching back to the notebook.
Attached to the same KVM is a Windows 7 notebook which does not have the problem - switching away from this machine does not cause it to reset to its single built-in display.
Can you advise on the setting to force the Windows 8.1 notebook to remember the extended display settings when the KVM selection is to another machine?