[lflux]

> If there are apps on MacOS that can't handle high dpi mode, I haven't run into them as a developer (or doing photo editing, video editing, plus whatever other hobbies I do). Also, I don't have any trouble with plugging my highDPI MacBook into a crappy 1080p display at work.

PyCharm had high CPU consumption issues with a Macbook connected to a 4k display running in a scaled resolution. Native 4k was fine, using the default resolution was fine but "more space" made it use tons of CPU since it had to rescale text and UI elements on the CPU.

[lowercased]

I think all the jetbrains tools did. I remember a few years ago there was some big switch over (high Sierra maybe?) and the jet brains tool fonts were janky for a while - something to do with the bundled jvm and font rendering. I think it's sorted now, but there was an 'issue' there for a while. Maybe it's still an issue in some configurations?

[snuxoll]

Still an issue - the scale factor is 2.0 or 1.0 by default depending on whether the display is HiDPI/Retina or not.

There is an option to change the scale manually (-Dsun.java2d.uiScale=<floating point value> in the JVM rags), but I don’t know if it helps or not.