Hi g101, you will only need the Intel® HD Graphics and Intel® PROSet Wireless Software. Based on your hardware and operating system, you should be able to connect via the option “Add a wireless display”. See the documents below for more detailed information.
Intel® WiDi in Windows* 8.1: Steps to Connect and Display
Basic supported configurations for Intel® WiDi installation
You will probably need to set up your system BIOS to allow both graphics controllers to work (even when using the discrete graphics), if possible set it up for Intel® HD Graphics to be the main or primary graphics adapter. Then, connect the main display to the motherboard and search for the “Add a wireless display” option in Charms. If you are having trouble with the BIOS settings please consult the documentation provided by the manufacturer.
If the steps above do not work, please remove the discrete graphics adapter from your system and try with Intel® HD Graphics only.