4K Monitor Windows Scaling Resolution

[mestizomad]

Hi,

I have a 4K (2160 x 3840) monitor for my Windows 10 PC.

If i use windows display scaling set at 100%, all the icons are tiny, but when i do a screen resolution test using various websites, the results come back as 2160 x 3840.

I used websites such as:


https://bestfirms.com/what-is-my-screen-resolution/





However, if i change my windows scaling to 150% (recommended), the icons are bigger now, but when i do the same screen resolution test again, the results come back as 1440 x 2560.





Is Windows actually reducing the resolution of my screen when i use the scaling options in the Display area of Settings?

Or is this just a glitch with all of the Screen Resolution Test Websites that i've tried?

Does this maybe only effect things like my web browser?

If i want to view 4K video on a web browser, will i need to set my windows scaling to 100%?

Many Thanks

Marcus

 

[Orcvader]

It's the way these sites detect the resolution, what they're asking for is the viewport size, which gets shrunk when you scale up, so they don't know what the actual true resolution is. The resolution is still in 4K.

Same happens when you check on your phone, it gives you a silly small resolution due to scaling when the true resolution is actually bigger.