Question Buzzing whenever I unplugg HDMI from laptop

[Zzmedzz]

Okay so, the problem happened just now.
I was using HDMI with a TV screen (lap > tv) it was all fine, but when I unplugged HDMI cable from the laptop, some little buzz just came outta nowhere, as said it isn't that loud tho, but can be hearable, also when I just bring HDMI next to the port, like just a small contact without even plugging it in, it stops, if I take it away it starts buzzing again...

note: buzzing comes when i plug a headset only

How can I fix it?, Note that even when it's shut down, and charger is plugged it still make that buzz
Pls help...

 

[helpstar]

Which laptop is it?

Does it buzz while the charger is unplugged?
Try a different similar charger (same voltage and polarity, it can have more wattage/current but not less)

 

[Zzmedzz]

Which laptop is it?

Does it buzz while the charger is unplugged?
Try a different similar charger (same voltage and polarity, it can have more wattage/current but not less)

dell inspiron 15 3552
just a note i forgot to mention, this buzzing just happens when i plug a headphone only

and yea it stops buzzing when i unplugg the charger

 

[helpstar]

Does the headphone connect by USB or a 3.5" jack?

 

[Zzmedzz]

Does the headphone connect by USB or a 3.5" jack?

3.5 jack, another thing, when I put my finger on one of the ports (usb/HDMI) it stops
Also, the buzzing isn't that loud it's very light n can barely be heard, only through headphones.
N no buzzing through speakers.

 

[helpstar]

check with other headphones