Digital Monitor Is There A Software That Can Switch An External Monitor From Digital To Analog Mode?

Is there a software that can switch an external monitor from digital to analog mode? - digital monitor

I ate with my monitor setup menu and click on external digital from analog, having walked the screen "mode and everything is black. Now I can not access the configuration menu, you can go back to analog. Is there download a software that I can adjust the monitor settings, and new digital to analog?