New
#1
Cannot extend display to second monitor
I am using windows 10 pro on my Powerspec desktop PC. I have one HP monitor and one AOC monitor. I had three monitors (one HP and 2 AOC monitors) working fine using extended display. After removing one monitor (now have 2), the extended display does not work any more. I can use "Duplicate these displays", "Show only on 1" or "Show only on 2", all work fine, except "Extend these displays". When I select Extended, the second screen shows up with task bar, but I cannot move any window onto the second screen. The mouse does not move over either. I tried update the display driver, rebooting computer, reconnect the cable, nothing works! What's wrong?