Meanwhile in Linux the scaling is generally good, but occasionally I'll run into some UI element that doesn't scale properly, or some application that has a tiny mouse cursor.
And then Windows has serious problems with old apps - blurry as hell with a high DPI display.
Subpixel antialiasing isn't something I miss on macOS because it seems pointless at these resolutions [0]. And I don't think it would work with OLED anyway because the subpixels are arranged differently than a typical conventional LCD.
[0] I remember being excited by ClearType on Windows back in the day, and I did notice a difference. But there's no way I'd be able to discern it on a high DPI display; the conventional antialiasing macOS does is enough.
Fonts on Linux (KDE Plasma on Wayland) look noticeably sharper than the Mac. I don't use subpixel rendering either. I hate that I have to use the Mac for work.
This would've been easily solved with non-integer scaling, if Apple had implemented that.
(I now use a combo of 4K TV 48" from ~1.5-2 metres back as well as a 4K 27" screen from 1 m away, depending on which room I want to work in. Angular resolution works out similarly (115 pixels per degree).)
Some indie Mac developers even started implementing support for it in anticipation of it being officially enabled. The code was present in 10.4 through 10.6 and possibly later, although not enabled by default. Apple gave up on the idea sadly and integer scaling is where we are.
Here’s a developer blog from 2006 playing with it:
> https://redsweater.com/blog/223/resolution-independent-fever
There was even documentation for getting ready to support resolution independence on Apple’s developer portal at one stage, but I sadly can’t find it today.
Here’s a news post from all the way back in 2004 discussing the in development feature in Mac OS tiger:
> https://forums.appleinsider.com/discussion/45544/mac-os-x-ti...
Lots of of folks (myself included!) in the Mac software world were really excited for it back then. It would have permitted you to scale the UI to totally arbitrary sizes while maintaining sharpness etc.
> (I now use a combo of 4K TV 48" from ~1.5-2 metres back as well as a 4K 27" screen from 1 m away, depending on which room I want to work in. Angular resolution works out similarly (115 pixels per degree).)
The TV is likely a healthier distance to keep your eyes focused on all day regardless, but were glasses not an option?
Once you get used to flicking in and out of zoom instead of leaning into the monitor it’s great.
As an aside, Windows and Linux share this property too nowadays. Using the screen magnifiers is equally pleasant on any of these OSes. I game on Linux these days and the magnifier there even works within games.
I use a Mac with a monitor with these specs (a Dell of some kind, I don't know the model number off the top of my head), at 150% scaling, and it's not blurry at all.
4K pixels is not enough at 27" for Retina scaling.
Apple uses 5K panels in their 27" displays for this reason.
There are several very good 27" 5K monitors on the market now around $700 to $800. Not as cheap as the 4K monitors but you have to pay for the pixel density.
There are also driver boards that let you convert 27" 5K iMacs into external monitors. I don't recommend this lightly because it's not an easy mod but it's within reason for the motivated Hacker News audience.
I removed all the computing hardware but kept the Apple power supply, instead of using the cheapo one that came with the LCD driver board I bought. I was able to find the PWM specs for the panel, and installed a cheap PWM module with its own frequency & duty-cycle display to drive it and control brightness.
The result is my daily desktop monitor. Spent way too much time on it, but it works great!