I have a 2013 MacBook Air that I used Thunderbolt to DVI adapter to hook-up to an external monitor. It works great. On my brand new MacBook Pro 13-inch I added a Thunderbolt 3 to USB-C adapter to connect it to my external monitor. With the DVI adapter connected to the new Thunderbolt to USB-C adapter the external monitor does not recognize my laptop. Any suggestions on how to make the external monitor see my laptop is appreciated.