The tv is a 55" QLED Samsung. I connect my ASUS based PC with RX460 card via HDMI to my Marantz SR7005 receiver, from there to the QLED tv. Works great, but if I switch source away from the PC to any other HDMI source, when I switch back to the PC the screen is black and only rebooting the PC or power cycling the Marantz receiver will get the PC image back. If I connect the PC using the onboard Intel based connection, I don't encounter that problem. Seems to be a RX460 issue. BTW I had an RX560 that did the same thing. Anyone know what can be done?