In my task I'm utilizing a CM2009 IC between actual VGA controller and VGA output connector. It is mentioned from the datasheet for this IC which i can use EMI filters on HSYNC, VSYNC and DDC channels correct after IC and prior to VGA connector. While there are no specs https://heads-up-display-helmet75319.atualblog.com/37364798/single-phase-emi-emc-line-filter-for-dummies