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HP Recommended
HP x20LED
Android 9.0 Pie

I've have done everything I know to do, and goole hasn't yielded any results.  I am using an x20LED monitor (yes I'm aware its an old monitor), which I've been trying to get to work with my Samsung Galaxy S9.  I'm actually typing this from the Samsung Dex app on the monitor now, and it seems to be working flawlessly except for this floating "Input Not Support" message box.  I'm using a usb-c to hdmi adapter, and since the monitor is older I had to use a dvi to hdmi adapter as well.  I've seen people have similar issues, but they are all windows users which doesn't apply to my situation.  Any ideas what might be causing it, and is there anyway to remove this box?  

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