HDMI ground loop problem

4 Effective Ways to Eliminate Ground Loop Hums | SC&T

6 simple and cheap ways to fix hum, buzz and ground loop noise issues - Welcome to Loopop Music!

Estink Ground Loop Noise Isolator with 3.5mm Audio Cable for car Audio/Home, Stereo Audio Noise Filter Humming Hissing Buzzing Noise Filter

Ground Loop Isolator Noise Filter for Car Audio/Home Stereo, 2 PCS Ground Loop Noise Isolator with 3.5mm Audio Cables

RCA Noise Filter Hum Eliminator Ground Loop Isolator (No Affect Bass) Quality Isolator for HiFi Stereo Home Theater Car Audio Player (Black)

Fluke 1630-2 FC Earth Ground Clamp