I have tried two different adapters now Plugable USB-C and WAVLINK USB C. and both times my wired mouse lags. I am using a Dell U2415 1920x1200 and Dell 20" 1680x1050 display. The mouse is a 2005 Logitech wired Click mouse which works really well otherwise. Has anyone noticed any mouse issues with the dual display setup? Does DisplayLink even officially support the M1? With one external display the mouse works great. Really frustrating.
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