In my undertaking I'm using a CM2009 IC between genuine VGA controller and VGA output connector. It is stated during the datasheet for this IC that I can use EMI filters on HSYNC, VSYNC and DDC channels suitable right after IC and prior to VGA connector. Though there aren't any https://neetclass11physics75385.creacionblog.com/31099358/getting-my-emi-emc-filter-circuit-to-work