Apple Investigating Issue With 'Pink Squares' Appearing on Displays Connected to M1 Mac Mini

In an internal memo this week, obtained by MacRumors, Apple informed service providers that it is aware of and investigating an issue that may result in "pink squares or pixels" appearing on displays connected to an M1 Mac mini.

pink squares macos


This issue has been reported by users across the Apple Support Communities, MacRumors Forums, and Reddit since the M1 Mac mini launched in November, but the exact cause is unclear. Based on comments from affected users, it appears that the issue may be more common when connecting displays via HDMI compared to Thunderbolt.

Apple did not provide a specific timeframe for a fix. The memo was issued on February 19, over a week after the release of macOS Big Sur 11.2.1, which does not appear to address the issue. It is possible that a fix could be readied in time for the release of macOS Big Sur 11.3, which has been in beta testing since February 2.

In the meantime, Apple outlined the following troubleshooting steps:

  • Put the Mac mini to sleep
  • Wait two minutes and wake the Mac mini
  • Unplug the display from the Mac mini, and then plug the display back in
  • Adjust the display's resolution in System Preferences > Displays

If the issue reoccurs after restarting the Mac mini, Apple says to repeat the steps above.

There have been various other external display issues with M1 Macs in recent months, ranging from USB-C connection issues to some resolutions being unavailable when using an ultrawide or super-ultrawide display.

Related Roundup: Mac mini
Buyer's Guide: Mac Mini (Caution)
Related Forum: Mac mini

Top Rated Comments

cmaier Avatar
12 months ago

Maybe Apple isn't as good a GPU designer as they think they are... Intel, AMD & nVidia have been doing it a long time, and have the compatibility with external devices figured out.
It’s certainly a software, not a hardware, issue, so GPU design has nothing to do with it.

And you think nobody ever has problems with Intel, AMD or nVidia? Seriously?
Score: 23 Votes (Like | Disagree)
Apple_Robert Avatar
12 months ago
I think Pink looks pretty good. There has been about 3 times when I had to force shutdown my M1 and the screen went Pink right before it turned off to reboot. I am not sure it is a flaw.

Score: 15 Votes (Like | Disagree)
D.T. Avatar
12 months ago
Pink squares? Blue diamonds? Green clovers?

I blame Apple's lead graphics engineer:



Attachment Image
Score: 11 Votes (Like | Disagree)
Saberon2014 Avatar
12 months ago
This is a miracle, I posted nearly 3 months ago about this and it's been silence from Apple since. I've long since returned my Mini and bought something else instead which is too bad.


https://forums.macrumors.com/threads/display-issues-with-m1-mini.2270088/
Score: 7 Votes (Like | Disagree)
Joker73 Avatar
12 months ago
Finally!
This seems to happen randomly on startup and it seems to be solved when rebooting. But it's annoying.
Score: 7 Votes (Like | Disagree)
LarrySW Avatar
12 months ago

Maybe Apple isn't as good a GPU designer as they think they are... Intel, AMD & nVidia have been doing it a long time, and have the compatibility with external devices figured out.
I had similar issues in recent years with those companies mentioned so your comment is incorrect.
Score: 7 Votes (Like | Disagree)

Related Stories

m1 mac mini screen

Apple Working on High-End Mac Mini With Additional Ports and More Powerful Chip From Next-Gen MacBook Pro

Tuesday May 18, 2021 8:44 am PDT by
Apple is working on a high-end version of the Mac mini, featuring a more powerful Apple silicon chip and extra ports, according to Bloomberg's Mark Gurman. In a wide-reaching report, Gurman explained that Apple is developing a more powerful version of the Mac mini, positioned as a high-end version of the current M1 model. The new Mac mini is expected to use the same chip as the...
macOS Big Sur Feature Purple

Apple Seeds First Beta of macOS Big Sur 11.4 to Developers [Update: Public Beta Available]

Wednesday April 21, 2021 10:26 am PDT by
Apple today seeded the first beta of an upcoming macOS Big Sur 11.4 update to developers for testing purposes, with the new beta coming while the macOS 11.3 beta is still in testing. Developers can download the ‌‌‌macOS Big Sur‌‌‌ 11.4 beta using the Software Update mechanism in System Preferences after installing the proper profile from the Apple Developer Center. According...
macOS Big Sur Feature Purple

Apple Seeds RC Version of macOS Big Sur 11.3 to Developers

Tuesday April 20, 2021 11:16 am PDT by
Apple today seeded the RC version of an upcoming macOS Big Sur 11.3 update to developers for testing purposes, with the new beta coming one week after the launch of the eighth beta and more than two months after the release of macOS Big Sur 11.2, a bug fix update. Developers can download the ‌‌macOS Big Sur‌‌ 11.3 beta using the Software Update mechanism in System Preferences after...
macbook pro touch bar m1

Some Users Having External Display Connection Issues With macOS Big Sur 11.1 and 11.2

Wednesday February 3, 2021 1:46 pm PST by
Some macOS Big Sur users who are running the 11.1 and recently released 11.2 update have been experiencing ongoing issues with external displays, based on multiple reports on the MacRumors forum, Apple Support Communities, Twitter, and Reddit. There are at least two separate issues at play, but both are related to external display connections. The problems appear to have started with the...
mac mini 10 gigabit

Apple Now Offers $100 10Gb Ethernet Add-On for Mac Mini

Tuesday April 20, 2021 12:54 pm PDT by
In addition to overhauling the iMac lineup with new M1 iMac options, Apple today quietly added a new feature to the Mac mini. Mac mini buyers can now opt to add a 10 Gigabit Ethernet port to the device for a $100 add-on. When the Mac mini launched, there was a Gigabit Ethernet option, but no upgrade to 10 Gigabit available. There was, however, a sign that 10 Gigabit Ethernet was coming. Ma...
macOS Big Sur Feature Orange

Apple Releases macOS Big Sur 11.3 With M1 Optimizations, AirTag Integration, Updated Controller Support, Apple Music Updates and More

Monday April 26, 2021 9:58 am PDT by
Apple today released macOS Big Sur 11.3, the third major update to the macOS Big Sur‌ operating system that launched in November. ‌macOS Big Sur‌ 11.3 comes two months after the release of macOS Big Sur 11.2, a bug fix update. The new ‌‌‌macOS Big Sur‌‌ 11.3 update can be downloaded for free on all eligible Macs using the Software Update section of System Preferences. macOS Big...
macOS Big Sur Feature Purple

Apple Seeds macOS Big Sur 11.4 Release Candidate to Developers

Monday May 17, 2021 10:17 am PDT by
Apple today seeded the release candidate version of an upcoming macOS Big Sur 11.4 update to developers for testing purposes, with the new beta coming two weeks after the release of the third macOS Big Sur 11.4 beta. Developers can download the ‌‌‌macOS Big Sur‌‌‌ 11.4 beta using the Software Update mechanism in System Preferences after installing the proper profile from the...
macOS Big Sur Feature Triad

Apple Seeds Third Beta of macOS Big Sur 11.4 to Developers

Monday May 10, 2021 10:14 am PDT by
Apple today seeded the third beta of an upcoming macOS Big Sur 11.4 update to developers for testing purposes, with the new beta coming two weeks after the release of the second macOS Big Sur 11.4 beta. Developers can download the ‌‌‌macOS Big Sur‌‌‌ 11.4 beta using the Software Update mechanism in System Preferences after installing the proper profile from the Apple Developer...

Popular Stories

Upcoming Products 2022 Feature

Gurman: Apple Preparing 'Widest Array of New Hardware Products in Its History' for Fall

Sunday January 23, 2022 10:32 am PST by
Apple is working on a number of new products that are set to launch this fall, and Bloomberg's Mark Gurman says that it will be "the widest array" of new devices that Apple has introduced in its history. In his latest "Power On" newsletter, Gurman explains that Apple is working on four new flagship iPhones (iPhone 14, iPhone 14 Max, iPhone 14 Pro, and iPhone 14 Pro Max), an updated low-end Ma...
macbook pro 14 16 2021

Three Months After Launch, Apple Still Struggling to Meet Demand for Redesigned 14-Inch and 16-Inch MacBook Pro

Monday January 24, 2022 7:12 am PST by
Three months after their launch, the 14-inch and 16-inch MacBook Pros continue to experience high demand and seemingly short supply, with shipping dates for both models stretching into multiple weeks in several of Apple's key markets. In the United States, the baseline 14-inch MacBook Pro with the M1 Pro chip is estimated to ship in three to four weeks, promising an arrival by at least...
General Dropbox Feature

macOS 12.3 Will Include Cloud Storage Changes Affecting Dropbox and OneDrive

Tuesday January 25, 2022 3:31 pm PST by
Dropbox today announced that users who update to macOS 12.3 once that software version becomes available may temporarily encounter issues with opening online-only files in some third-party apps on their Mac. In a support document and an email to customers, Dropbox said it is actively working on full support for online-only files on macOS 12.3 and will begin rolling out an updated version of...
Questionable Design Decisions

Apple's Most Questionable Design Decisions in Recent Memory

Sunday January 23, 2022 2:59 am PST by
Apple has always emphasized the depth of thought that goes into the design of its products. In the foreword to Designed by Apple in California, a photo book released by the company in 2016, Jony Ive explains how Apple strives "to define objects that appear effortless" and "so simple, coherent and inevitable that there could be no rational alternative." But every once in a while even Apple...
Apple Watch Red Yellow Green Feature 1

Apple Launches Black Unity Braided Solo Loop With 'Unity Lights' Watch Face

Wednesday January 26, 2022 6:05 am PST by
Apple today announced the Black Unity Braided Solo Loop for the Apple Watch, as well as a new downloadable watch face, to celebrate Black History Month. Following the launch of the limited edition Black Unity Apple Watch Series 6 and Sport Band in 2021, Apple today launched the Black Unity Braided Solo Loop as part of its celebrations for Black History Month this year.Apple is launching a...
att gigabit internet

AT&T Bringing $180/Month 5-Gigabit Internet to 70 Cities

Monday January 24, 2022 9:20 am PST by
AT&T today announced the launch of upgraded AT&T Fiber plans, which support speeds of up to 5 Gigabits for some customers. There are two separate plans, one "2 GIG" plan and one "5 GIG" plan, available to new and existing AT&T Fiber subscribers. According to AT&T, the new plans are available to nearly 5.2 million customers across 70 metro areas including Los Angeles, Atlanta, Chicago, San...
intel vs m1 max chip purple

Benchmarks Confirm Intel's Latest Core i9 Chip Outperforms Apple's M1 Max With Several Caveats

Wednesday January 26, 2022 8:56 am PST by
Benchmark results have started to surface for MSI's new GE76 Raider, one of the first laptops to be powered by Intel's new 12th-generation Core i9 processor. Intel previously said that its new high-end Core i9 processor is faster than Apple's M1 Max chip in the 16-inch MacBook Pro and, as noted by Macworld, early Geekbench 5 results do appear to confirm this claim, but there are several...
ios 15

Apple Releases iOS 15.3 and iPadOS 15.3 With Fix for Safari Bug That Leaks Browsing Activity

Wednesday January 26, 2022 10:00 am PST by
Apple today released iOS 15.3 and iPadOS 15.3, the third major updates to the iOS and iPadOS 15 operating systems that were released in September 2021. iOS and iPadOS 15.3 come almost two weeks after the release of iOS and iPadOS 15.2.1, minor bug fix updates. The iOS 15.3 and iPadOS 15.3 updates can be downloaded for free and the software is available on all eligible devices over-the-air in ...