The monitor communicate with the Mac and sends it a list of predefined resolutions it wants to get. Your Mac has limits in the resolutions it can send to the monitor and the monitor has limits in the resolutions it can show from the Mac. This question however doesn't refer to 5120x1440 monitors - for these monitors, please check the following FAQ. The description of the answer is written for 2560x1080, but the same applies for other resolutions So if you use external monitor with your mac system there is a high chance that you have enabled HiDPI resolutions for your monitor like many if not enabled by default.This question is valid for getting wide screen resolutions on older Macs.įor example, 2560x1080, or 2560x1440, or 3840x1080, etc. So lately I was thinking to upgrade my 2015 MacBook Air and also wanted to try the new M1 processor, luckily got a pretty good deal on the 2020 M1 Mac mini base model. After the initial setup came time to enable HiDPI for the monitor was surprised to see HiDPI not enabled by default for my 2K LG monitor even though M1 Mac mini has support till 6K resolution. While googling for the solution first I came across this developer forum thread where I came to know that only monitors having resolutions 4K and above have scaled HiDPI resolutions enabled by default. After hours of reading posts and comments on Mac rumours, Reddit, etc I had some suggestions to try out. Let's see each of them and see what all method works. Old method which works on intel Macs SCALED RESOLUTIONS for your MacBooks external Monitor.This method works with many HiDPI resolution with 60+Hz but you have to buy another adapter □♂️ in this case EDID HDMI adapter which is dummy 4K plug which makes any monitor behave as 4K and costs 5$ to 10$ depending on your location for more details refer If you follow the steps as described on the above site after reboot you won't see HiDPI enabled In this you basically enable HiDPI mode by writing flag to and generating resolutions for your monitor a one of the great tool for doing this is developed by Bernhard Grünewaldt ( /clouless)Ĭode generated by this method looks like this DisplayProductName Your Monitor Name DisplayProductID Your Monitor DisplayProductID DisplayVendorID Your Monitor DisplayVendorID scale-resolutions For many EDID HDMI adapter was required to get HiDPI resolutions, but someone has developed a software version of the adapter which bypass the need of buying EDID HDMI adapter and enables the HiDPI resolutions. Just download this software and follow the instructions on the home page, you should have HiDPI resolutions enabled. If you want 60Hz + refresh rate then use Only problem with this method is that refresh rate is till 60Hz which may get resolved in future update. This method also works with a limitation that only 720p as decent resolution is available in HiDPI with 60 Hz refresh rate for some monitors which is okay, for this you have to download another great tool SwitchResX. The trick is after installing the tool and downloading helper tools after app launch you have to set scaled resolution base of monitor as 4K i.e 3940x2160 and some startup resolution like 1920x1080p which makes OS believe that we are using 4K display. After setting the base resolution and saving it, just reconnect your monitor you should see HiDPI options for your 2K monitor. Use tool like new forked version of RDM or SwitchResX for checking which HiDPI resolutions are available apart from the system display. I have added 0 and 16$ as cost because this was working fine for me for over a month but I was experimenting with settings(because other resolutions were only running on 30Hz HiDPI) for some reason those were not getting saved, later found the reason as trial period got over had I not experimented cost of this method would have been 0. Still If you can buy this great tool you will get plenty of display customisation options along with HiDPI and also future updates as Madrau must be working on the permanent fix so that other resolutions works on higher refresh rates.
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