New Apple Silicon M4 and M5 HiDPI Limitation on 4K External Displays
Table of ContentsStarting with the M4 and including the new M5 generations of Apple Silicon, macOS no longer offers or allows full-resolution HiDPI 4k modes for external displays.The maximum HiDPI mode available on a 3840×2160 panel is now just 3360×1890 (with a 6720×3780, instead of 7680×4320 backing store) – M2/M3 machines did not have this limitation.With this regression Apple is leaving users to choose between:Full screen real estate at 4k (3840×2160) with blurry text due to HiDPI being disabled.orReduced screen real estate at 3.3k (3360×1890) with sharp text (HiDPI) but significantly less usable working space, and macOS’s UI looking ridiculously oversized.This does not appear to be a hardware limitationThe DCP-reported capabilities are byte-for-byte identical between M2 Max and M5…
