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While I had the hdmi exit connected to my TV, I configured my laptop screen to be turned off. Now, everytime I connect the hdmi, my laptop screen goes blank and nothing appears on my TV. Can you help me?

FRD
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Answered by OP in a comment and question:

I just logged in as root and dual screen is working well. looks like there's a file I need to delete in my home folder. I solved it with rm .config/monitors.xml