Why Is My Second Monitor Not Full Screen. If the display does not appear in. If your display settings conflicts with your use the full screen problem will also occur under Windows 10.
Right-click on an empty area of your desktop and select Display Settings. Note that this is not window mode or borderless window mode - it is in full screen its just that the full screen isnt full screen. If you stepped away from the computer for a bit and returned to a black screen the computer is likely asleep.
In control panel - appearance - display - screen resolution they both show as HP23xw 1920x1080 resolution.
I also wanna let everybody know that I found a video from three years ago in my Snapchat that has my moms voice in it. Some issues especially very minor ones can be caused by very temporary issues with the connection to your computer that a restart will fix. I suspect that your monitors have different screen resolutions the change between the two is triggering the issue. Force Windows to detect your monitor.