Trouble getting dual monitors to display with dual KVM

I am trying to connect my UD-3900 to a double KVM switch ( [GREATHTEK Dual Monitor HDMI KVM Switch 2 Port, 2 USB 2.0 Hub, UHD 4K@30Hz YUV4:4:4 Downward Compatible, USB Powered, Hotkey Switch, with Cables: Electronics](http://PWAY Double HDMI KVM) ).

I want to be able to use my dual KVM to use both monitors with either my laptop or my desktop.

The UD-3900 is plugged into my laptop.

Monitor 1:
I have the Plugable HDMI going to the “HD In 1A” of the KVM port. This works.

Monitor 2:
On the Plugable side I have a DVI-to-VGA connector. On the KVM side I have a VGA connected to a VGA-to-HDMI connector going to the “HD In 1B” of the KVM port. This one is NOT working.

I’m not even trying to set-up the my desktop yet and I cannot get both monitors to show from the UD-3900. Any advice would be greatly appreciated.

TIA! Dan

Hi Dan,

Thank you for posting! We can see that you have also reached out to us directly via with the identical question, and we have just sent our direct reply.

Moving forward, please respond only to our direct email so we can keep all communication in one place.

Thank you,

Plugable Technologies