![]() ![]() (last bug I noticed: if the monitor reports that it also supports 1280x1024 60Hz, as standard or established timing in the EDID, even if it is a 4K native monitor, then HiDPI will not enable.This has given some clever developers to develop software solutions to add virtual 4K monitors to mirror your screen onto This again proves the limitation is intentional, since the video driver is then completely capable of handing HiDPI resolutions. on any other monitor, whenever it mirrors an other monitor where HiDPI is available (example: a 2K screen mirroring the internal Apple Silicon MacBook screen).SwitchResX is not a must but I recommend it. Some 4K Dongle are 4K capable, but not 4K native 1, Prepare SwitchResX, PlistEdit Pro and IORegExplorer. If you want to dig in a little more, youll see you can create your own custom resolution for all types of situations, but also save the position of elements on your screen. The basically means the monitor must show 4K as its native resolution. SwitchResX includes a wide range of default resolution settings from which you can choose, all quickly available thanks to a drop down menu bar. To do HiDPI 1280 x 800 you would need a display with resolution of at least 2560 x 1600, again, not possible on the 13' MacBook Air's display. For the MacBook Air in its current form, it would need to have a LCD display with at least 2880 X 1800 pixels to enable HiDPI modes. Note that from Apple words: "the mere presence of a 4k timing does not mean it’s a 4k display and because of this we don’t expose HiDPI modes.". It simply does not support 1280x800 or 1440x900 HiDPI modes, since it does not have a retina display or a display with enough pixels to do HiDPI. on 4K monitors showing a 4K as the native resolution.on internal MacBook screens, because the pixel density is higher than 160.This proved to be intentional, not a hardware limitation, and certainly not a bug that you should wait to be solved.įrom the best of my knowledge, HiDPI resolutions were previously only enabled on Apple Silicon: Reporting this as a bug or as feedback to Apple resulted in them answering it's acting as intended (see radar FB8715490 for those who can access this). Beta 7 removed this possibility from Monitors that aren't 4K, and then beta 9 removed it from monitors that aren't 4K Native. It was intentional, as it worked on the DTK (the Mac that was used as prototype for Apple Silicon Macs) up to BigSur Beta version (ß6) in September 2020. This matches the behaviour of the 4K displays now.įor history: before macOS 12.4 Monterey, HiDPI was explicitly reserved to specific monitors.Īpple intentionally disabled all HiDPI capabilities for all monitors that aren't 4K native, or don't have a pixel density of at least 160dpi (on the horizontal size as reported by the monitor). You cannot get a 2840x2160 HiDPI resolution in this case (which would be useless anyway). If your Mac uses a 2560x1440 monitor, you'll be able to get a 2560x1440 HiDPI resolution (by creating a 5120x2880 resolution), or anything lower. HiDPI resolutions get again enabled, up to the native resolution (ie. It seems to now be in par on 4K monitors or in non-4K monitors. Beginning with macOS 12.4, the behaviour changed on Apple Silicon Macs. ![]()
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