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Latitude 3400: no screen mirroring


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Hi Guys,


Thanks for your excellent support...


I have updated my Big Sur installation to Monterey successfully, using EFI folder given and managed to solve Bluetooth and Wi-Fi issues using tips provided by Jake Lo and David here.


Only issue I have now is my screen mirroring don't work. It shows on button disabled. Please help if someone have any suggestions. I have intel Wi-Fi and Bluetooth card in my Latitude 3400


Thanks in advance.

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