Sound from monitor on certain pages

[MysteriousAeon]

Hello guys, I'm using a ASUS VP228QG 75hz monitor and there's some sort of high frequency noise from the monitor when I'm on certain pages. I noticed the sound on some blogs and some font sites, and some pages with lots of white in it. Is it coil whine or is it something else and should I worry about it? Changing brightness or contrast doesn't do anything.

[Megatone]

Sorry to revive this old topic

 

But i have the same exact problem.

I order on Amazon,  first one had the problem.

Amazon send a replacement, second one have also the problem

 

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, is fullscreen mode...

 

Either i didnt have luck (These two monitor were the last stock from Amazon)
Either, this model have a default