So I got 3 Samsung tvs now with the new one. Have one that I use as a monitor for my pc and another that was in the living room. That one broke so I bough the new one (3rd). Problem is I can’t get the new tv (Samsung 65” qn90a) to post pc signal. Tried just about everything. Plug pc with hdmi into the other 2 Samsung tvs and works perfectly but plug it into the new tv and the tv recognizes it’s plugged in but says check device power. Tv is fine, all hdmi ports work with the cable box and even with an old laptop I had laying around. Post image from every source except the pc. Any ideas?