External Monitor & Laptop Screen Issue

[yekki]

I connect a external monitor to my laptop, then close the laptop lip, I still can move file to laptop screen which means the native screen doesn't closed after close lip. It seems a common issue, my question is how to patch it??

 

[RehabMan]

I connect a external monitor to my laptop, then close the laptop lip, I still can move file to laptop screen which means the native screen doesn't closed after close lip. It seems a common issue, my question is how to patch it??

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Read FAQ, "Problem Reporting" again. Carefully. Attach all requested files/output.
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/