Thanks MST1407. I already set color depth to 8, that got rid of the “no signal, ” (at 30hz) but the issue is when we set it to 60hz we get “no signal” again. I have tried 4 different versions of the AMD drivers, including the latest ones. Using the right HDMI port…kind of obvious but just to be on the safe side I have tried every HDMI port on the TV. I looked up UHD color, and it appears to be something that only applies to Samsung TVs. There has to be something else that can be done, this is driving me crazy.