Have a large screen tv on wall connected with HDMI to computer. Have a Samsung monitor on my desktop. Cannot make the desktop my primary monitor no matter what I do. (although have had this working before). We had a break-in and monitor was stolen. So replaced with new but cannot make it primary.....always defaults to samsung tv on wall. I have tried all
normal solutions.... unplugged all....began with desktop monitor....added tv, etc. Have spent way too many hours and am sure answer is simple. HELP PLEASE!