My laptop only has one HDMI port. So I bought a USB-C expansion hub that has HDMI and plugged it into my Thunderbolt 3 plug. Plugged in all 3 Rift usb plugs into it. plus the hdmi. Everything but the HDMI is being detected. I have updated thunderbolt drivers Updated bios. I am on an Alienware 17 R5, it runs a GTX 1018 Display setting does detect a 3rd display, and when I select it, it does detect that it is the Oculus Rift. But the Oculus app shows that there is no HDMI connection. Nvidia control panel does not show a 3rd display however.