I'm using the U3821DW and control input switching through command line DDM. I can enable PIP mode like this: ddm.exe /SetPxPMode PIP-Small DP USB-C
So far so good, it works great. What I haven't found out however is:
How can I select/switch the USB upstream port using DDM on command line? I'm looking for the same effect as if I select "USB switch" in the monitor OSD.
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swamped207
4 Apprentice
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426 Posts
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Posted May 6th, 2021 17:00
Try "ddm.exe /SwapUSB"