@haeckerfelix Love your idea, I may try it this winter!

I ran into the same problem a few years ago with my HP LP3065. Not sure if this is just ancedotal, but I have had success grounding the cabling well via grounding both devices being connected. This fixed most of my problem, other than the sparks on my butt as I get up :) Laptops have the biggest issue in my experience as they generally are isolated. Many screens are *also* isolated now...