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DellWillBee
1 Nickel

D520 keeps switching to external screen

I have an old Latitude D520 which I have pulled out of my computer closet to give to someone in need.  It booted right up Smiley Happy and then reminded me why I stopped using it.  The laptop monitor actually works fine but something in the boot-up switches it to "external screen only" mode (not monitor and screen), and thereby blanks out the laptop monitor.  I have tried switching it back using Fn-F8.  The switch works, but then it switches itself back to "external screen only" mode.  Any ideas?

Thank you for any assistance.  I have an extra screen that I could give them too, but it would be nice to have the thing still be portable.

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