Hello, I purchased this monitor through Amazon and noticed that it's making a buzzing sound even when the monitor is powered off. The only way to make it stop is to unplug it. I returned the monitor thinking it was a defect and purchased another one and low and behold the same issue is occurring. I talked with tech support and asked them if it was a fan or something else that could be audible and they said no.

Is this a known issue? Did I hit the lottery and get 2 bad monitors in a row? I notice that the buzzing sound gets fainter (still annoying though) if I reduce the brightness.

Any help appreciated.

edit: They both have manufacture dates of April 2021.