Apple Intelligence now features Image Playground, Genmoji, Writing Tools enhancements, seamless support for ChatGPT, and visual intelligence.

Apple Intelligence has also begun language expansion with localized English support for Australia, Canada, Ireland, New Zealand, South Africa, and the U.K. Learn more >

You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

4K Monitors for Mac Mini M1

Hi All,


I have got my new and Shiny mini M1 this week. I am currently using it with my old 24inch monitor.


now it is search time for new two 4K 27inch Monitors.


could you advise what kind of Monitor I should look for my M1 for best 4K resolution.


Should I go for with HDMI monitors?

Should I go for Display Port using USB-C to DP cable?

Should I go for USB-C monitors which are costlier than above two?


Regards

JM

Mac mini 2018 or later

Posted on Dec 18, 2020 2:11 AM

Reply
Question marked as Top-ranking reply

Posted on Dec 18, 2020 9:08 AM

After a great deal of reading and research, I purchased the recently released LG 27UN850-W. To say that I have been pleased with the choice would be an understatement. It is all I hoped for, and more, in that it solved the problem my previous monitor had with not waking up with my M1 Mac mini.


I disagree with VikingOSX on this: "One consideration is that if you opt for a 4K display, everything will appear smaller on the screen"


With a 4k display set in preferences to use its native "default for this display" resolution, what you see visually on screen with a 27" 4k monitor is exactly the same size as what you would see on a 27" 1080p monitor. Bear with me as this takes a bit (at least it did for me) to wrap your brain around. A 1080p monitor is 1920x1080 while a 4k monitor is 3840x2160. If you double 1920 you get 3840 and double 1080 get 2160. What Apple does is use a scaling factor. For each single pixel on 1080p, the 4k monitor displays four pixels, in a 2 x 2 grid. Double the horizontal (1920 = 3840) and double the vertical (1080 = 2160).


Bottom line, on screen, you have 4 times as many pixels making up the screen content, yet at the same visual size as 1080p. Packing 4 times as many pixels into the same physical space results in much sharper text, lines, curves, etc. What VikingOSX said would be true with different display resolution settings, but that is not how Apple intended it to be set for a 4k monitor.


The concept above is exactly how built in Apple displays work. Retina display is essentially all about packing in a high pixels per inch count. With a 27" 1080p monitor, you get 6,653 pixels per square inch. With a 27" 4k monitor, you get 26,628 pixels per square inch.


I have attached a screenshot of my LG 27UN850-W and you can see that the UI and text is not proportionally tiny or hard to read. Click it and open it up to full size to see.

42 replies

Jun 7, 2021 1:12 PM in response to TrafGib

Ok, I understand the scaling aspects of this discussion. What I am troubled by is the performance of my Mac mini M1 with my 5K LF UltraFine Display 27" (5120 x 2880) or  LG 27MD5KL-B Ultrafine 27" IPS LCD 5K UHD Monitor  with Thunderfbolt cable. I have some of the similar problems others have with the monitor not turning back on when awakening the Mac mini, for example.


Additionally, my Wacom tablet occasionally disconnects randomly, as well. Also, some applications such as Adobe's Photoshop Elements does not work, and, when I contacted Adobe about this issue, they admit it is the M1 chip causing the problem and their technicians are working on a solution. Capto, a screen capture program no longer works for me and we are trying to work this one out as well with Global Delight.


Would it be possible to use the HDMI cable instead of the Thunderbolt token the 5K resolution and avoid some of these problems?


Suggestions?


John E. Hutchins

4K Monitors for Mac Mini M1

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.