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I can't duplicate but I can extend - duplicate messes with "active signal" - don't know how to fix

Guest MZ Pastor Laptop

By Guest MZ Pastor Laptop
in Microsoft Products Support & Discussions

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Guest MZ Pastor Laptop

Guest MZ Pastor Laptop

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I'm running an Inspiron 15 3000 with 10th Gen Intel i5 core. I'm trying to display my laptop's screen on an older 1080p TV, LG 42PQ20.When I "extend" my desktop to the TV, everything works fine and I can see the screen on the TV. However, I really want to "duplicate".When I "extend", everything works, and Advanced Display says:Display 1: InternalDesktop mode 1366x768, 60hActive signal 1366x768, 60hDisplay 2: LG TVDesktop mode 1360x768, 60.02hActive signal 1360x768, 60.02hBut then I go to "duplicate", the TV says "invalid format", and Advanced Display says:Display 1: InternalDesktop mode 1366x7

 

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