I'll chime in because I had this frustration a few days ago.

All I did was use Windows (not CCC) Desktop Properties / Settings. Then I clicked on the second monitor and checked "Extend my windows desktop to this monitor". That enabled the second monitor.

The downside is that I now have an extended desktop where I can only see half of the desktop. I am unable to find a solution to mirror or duplicate the desktop so that I do not have a phantom extended desktop.