I tried to connect my monitor via HDMI and VGA. The screen turn on with the Fedora logo, but it isn't detected in the "Display and Monitor" system settings.
I am currently updating the system with yum to see if it makes a difference.
So I figured out it would work with VGA only after yum update and a reboot. The max resolution wasn't available in the ui. So I typed xrandr in the console to be sure, and I had the correct settings available, I typed
It updated the monitor display and the UI info, then I was able to setup my dual monitor config correctly in the manager.