This has been an issue for years as there is no standard for HDMI across all devices. I actually have this same type of issue on the Marantz 4k version of the receiver thats 3 years old, its very frustrating. I get the "This resolution is not supported" blank screen on the samsung tv after changing channels on the direct tv. Only solution I have found is to turn off the Marantz and then turn back on and the problem stops. Direct tv and Marantz dont work well together it seems.\n\nHDMI option sets are standardized. However, the implementation of those standards (think CEC) is where the problems arise. A bug in the chipsets certainly doesn't help the situation.