VP228QG (TN 21.5", 75hz, Freesync, DP) coil whine

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24 Mar 2020
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I have a VP228QG, it had coil whine
So i get a replacement (same model), it had coil whine too
The first one was made in august 2018, the second one in december 2019

So i have a high pitch noise, buzzing, coil whine
It gets lourder when there is dark content (Reddit night mode)
It gets less noisy if the background is mostly white (Google search page)
There is still coil whine even when the background is a mix of white and black

If i turn the page or the internet browser into fullscreen, Coil whine noise is very low but still here
If I return on deskopt, same thing
IN these two cases, the noise look like the same noise that a low fan produce

Things i did but didnt work :

Change all cable
Use VGA, HDMI and DP
Disconnect all other cable ( speaker, ethernet, keyboard, mouse)
Connect Headphone in monitor's Line-in
Change brightness 0-100
Change contrast (at 100, it get lourder)
Freesync on/off (get lourder on off)
Try everything in OSD
Switch on Cpu intel graphic gpu

So the only case, where the coil whine is weaker but you can still hear it , is fullscreen mode...

Either i didnt have luck (These two monitor were the last stock from a shop)
Either, this model have a default, because i found a post from 2019 about this model, and the guy had the same problem
 
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