I have a Hitachi 50HB6T72U smart tv and i connected it through a HDMI cable to my pc and when i try to make it as my second screen it just says no screen detected. But when i check for devices that are connected to the computer i can see that the TV is connected. My graphics card is:
AMD Radeon (TM) R9 380 Series
AMD Radeon (TM) R9 380 Series