[badsectoracula]

Yes, i'm also talking about laptops here, not just desktops.

If you can go by with 150% this isn't HiDPI (and on most laptops 150% for 1080p is too big anyway, at least on Windows, you want something around 125%). HiDPI is something that you need at least 200%, like Apple's 2560x1600 at 13" where anything less is unusable. Using 100% scaling on a laptop at 1080p is perfectly fine (this is my laptop configuration and how i use it).

Remember that "HiDPI" was the generic term that was used in place of Apple's trademarked "Retina" and what is i am talking about.

The entire discussion is about why HiDPI isn't supported and the answer is simply that few people need it (as shown by the stats i linked above and below) and fewer are in a position to implement it.

[zamadatix]

Anything above 100% is considered high DPI on Windows, including 125%. I.e. if the display DPI is not 100% and the app isn't DPI aware you will end up with a blurry mess since the OS will stretch the app for you via bitmap scaling by a factor of DPI / 100%. Apple is the only one that does integer factor only DPI for their hardware (100%, 200%, 300%...) and their entire current lineup is >100% now.