Asus UX303LA - fedora 21 - external monitor via mini display port not recognized

[CS DBA]

All;

I've installed Fedora 21 on an Asus UX303LA.

Most everything works great but I cannot get it to recognize an external
monitor
via the mini display port. I checked dmesg and saw no change when I plug
the monitor in.
I also booted with the monitor plugged in but still no luck.

Thoughts?

Thanks in advance