Windows 10: My 2nd monitor is not detected

I have a problem when i conect my 2nd motnitor it show that is not detected.

But when i go in Radeon Software and in settings i connect it but they show up as 1 screen over 2 monitors, how can i split them to 1 dekstop be on 1 monitor and second on other. When i try to open google or some game it go over 2 monitors, and my start menu and that is also stretch on both monitors.

Like 2 months ago it was normal but i didn't use my second monitor and when i connect it today it is not like before

:)

 

Windows 10 stopped detecting 2nd monitor

I've restarted the computer (several times), and it's not showing any signs of detecting the 2nd monitor.

Ever since it stopped working, there's only '1' Display option; clicking 'Detect' in Multiple displays results in the message
"Didn't detect another display"; the Device Manager only lists one monitor (screenshot below); and it has stopped allowing me to select other projection modes unless I connect to the 2nd monitor wirelessly.

I'm using an HDMI cable for the 2nd monitor, and have tried both HDMI ports on the monitor unsuccessfully. The monitor models are Dell E2414H and LG 24J4840.





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2nd monitor not being detected

Received a software update for windows 10. Upon restart my 2nd monitor was no longer working. Went to the display section in Settings and it is not being detected. Pushed the detect button and nothing. How do I get this back. My 2nd monitor is more
important than any new things in the update.

 

2nd monitor is not detected

Just purchased AOC portable monitor. Loaded drivers. When I plug the monitor into USB3.0, it flashes on (AOC) and then goes off. There is no on/off button. Using Windows 10. Monitor is not detected. I am not sure what else I must do in order to use
this monitor. Any suggestions are appreciated. Thank you.