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How to automatically detect the source input?

For example, if the 2 DVI inputs are connected to two PC, how can it automatically choose the DVI of the PC that is working (the one that is active)?

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ghatikar

ghatikar

My Dell 20Sw changes to the input which was last switched on automatically . Try using the screen resolution button in windows to switch on and off the monitor or resolution that sometimes changes the input to the pc You are currently on
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