My PC screen goes black when I unplug an external monitor. How can I get my PC screen without external monitor?

Any monitor I show my work, when I unplug the external monitor, the screen of my PC turns off.   When I plug the external monitor, turns on the PC screen.   How to do back on the PC screen?  I tried all the combinations in the Panel.

Glad I could help!
Usually, it is 3 combinations to scroll. You can mark the question as answer in case someone else has the same problem.

Tags: Windows

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