cli: addtional monitor -- console only with no video card?

so I have a laptop with dual sli video cards and an external monitor. recently a third monitor came into my possession.

The two video cards can only power two displays, so I have a third display that I can’t use. I was wondering if there was someway to set it up to display a permanent console. just updating text would be a significantly lighter load then any kind of gui/window system. So could I do that without a third video card? Then I could alt+tab onto the third, text only console monitor.

Does anyone know how to implement this? or any resources you could point me towards?