TLDR; supposedly gas lift office chairs create an emi spike causing interference on the video cable. A white paper from 1993 was linked as proof also display link website talks about it and links to the same 1993 white paper. This person was using a macbook. Apparently they grounded the chair to the desk with a metal chain and put “ferrite” rings on the video cable and that reduced, but, didnt completely eliminate the issue.
My personal opinion is the metal Mac book is part of the issue, ive seen USB ports on macs with burn marks because of electrical arcing. I’m not saying this isnt real its just very weird, they also live in spain which has 230volt outlets and I’m no electrician but I would suspect 230 v would put off more emi than a 120 for example. I can see the metal Mac book taking some of that charge and triggering an over voltage event on the USB port shutting off the port until full cycled.
I’m guessing because I have a hard time believing with modern video cables this could still be happening the way thats claimed idk i have seen weird shit though.
Nice ai picture