Samsung UE55KU6170
55", LCD, 4K, 2016
Samsung UE55KU6170
55", LCD, 4K, 2016
So there are the following possibilities: 1. the TV does not have HDMI version 2.0. 2. the graka does not have HDMI 2.0 (do you have a notebook or a desktop connected?) Which graka are you using? 3. the cable is not suitable for UHD. You can check that. Tip: www.chip.de/artikel/4K-Fernseher-als-Monitor-nutzen-Wir-mach...