[SOLVED] Black Dot, but not a dead pixel?

[spicelol]

Hello, so i have DELL S2421HGF it's 6 months old and today black dot appeared on the screen, i don't think it's a dead pixel because you can see it when i do screenshot.

Fullscreen screenshot i took :

https://imgur.com/a/Z8yazuy

View: https://imgur.com/a/Z8yazuy

and
Screenshot of the black dot :

https://imgur.com/a/CrOfPw8

View: https://imgur.com/a/CrOfPw8

I also tried putting red, green, blue screens and the dot is still there

 

[lvt]

If you can make a screenshot of it, it's not the LCD but your video card.

You can try your LCD on another computer to verify.