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 (Don't Buy)
Related Forum: Mac mini

Top Rated Comments

cmaier Avatar
17 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
17 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
17 months ago
Pink squares? Blue diamonds? Green clovers?

I blame Apple's lead graphics engineer:



Attachment Image
Score: 11 Votes (Like | Disagree)
Saberon2014 Avatar
17 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
17 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
17 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

First Mac Mini Redesign in 12 Years to Bring Apple TV Look With iMac Touches

Monday February 14, 2022 2:09 am PST by
The Mac mini is set to get a significant overhaul, introducing the first major redesign to the popular desktop computer in almost 12 years. To form the new design, Apple appears to be looking to the first-generation Apple TV and the 24-inch iMac. Apple has been believed to be working on a new Mac mini for some time. Apple updated the entry-level Mac mini with the M1 chip in November 2020,...
m2 feature purple

Updated Mac Mini Still Coming With M2 and M2 Pro Chips

Wednesday March 9, 2022 3:53 pm PST by
Prior to yesterday's spring event, rumors suggested that Apple might unveil a new Mac mini, but instead we got the all-new Mac Studio, which is something of a mix between a Mac mini and a Mac Pro. Apple isn't phasing out the Mac mini with the debut of the Mac Studio, and a new version is still in the works. The Mac Studio uses the M1 Max and new M1 Ultra chips, but for the next Mac mini, 9to5...
mac mini intel gray

Mac Mini and Mac Pro are Apple's Last Two Remaining Intel Macs With Launch of Mac Studio

Tuesday March 8, 2022 11:31 am PST by
With the launch of the new Mac Studio that replaces the higher-end 27-inch Intel iMac, Apple has just two Intel Macs left in its lineup - the Mac Pro and the Mac mini. Though the Mac Studio appears to be something of a Mac mini and Mac Pro hybrid, Apple has not discontinued the high-end Intel Mac mini and it remains in the lineup. This suggests a new version of the high-end Mac mini is...
macOS Big Sur Feature Orange

Apple Releases macOS Big Sur 11.6.4 With Security Fixes

Monday February 14, 2022 10:27 am PST by
Apple today released macOS Big Sur 11.6.4, a security fix update that is designed for Mac users who continue to use the Big Sur operating system instead of macOS Monterey. The ‌‌‌‌macOS Big Sur 11.6.4‌‌ update can be downloaded on all eligible Macs using the Software Update section of System Preferences. Today's update comes about two weeks after the launch of macOS Big Sur...
aapl logo banner

Which New Mac Will Apple Release at Its March Event?

Sunday February 20, 2022 2:00 am PST by
Apple is widely expected to unveil a new Mac next month, but with the high-end Mac mini, the 27-inch iMac, and the Mac Pro all still featuring Intel chips and Apple's M1 machines from 2020 now reaching almost 15 months in age, it is not immediately clear which new model the company is planning to announce next. Bloomberg's Mark Gurman, who often reveals accurate insights into Apple's plans, r...
m1 mac mini

Kuo: 2023 Mac Mini to Retain Same Design as Current Model

Saturday March 12, 2022 9:48 am PST by
Apple's next-generation Mac mini will likely feature the same design as the current model, according to reputable analyst Ming-Chi Kuo. In a brief tweet, Kuo said that the refreshed Mac mini is likely to retain the same form factor as the current model, which is an aluminum unibody design that Apple has used for every new Mac mini since 2010. Earlier this week, Kuo said that the new Mac...
m1 mac mini screen

New High-End Mac Mini Rumored to Launch at Spring Apple Event

Wednesday February 2, 2022 2:35 am PST by
Apple is planning to launch a new, high-end Mac mini at an event in the spring, according to recent reports. The release date rumor comes by cross-referencing recent reports from display analyst Ross Young and Bloomberg's Mark Gurman, both of whom often provide accurate insights into Apple's plans. In December 2021, Young said that a new iMac Pro model with a mini-LED display was going to...
mac mini intel gray

Kuo: New High-End Mac Mini Won't Arrive Until Next Year

Thursday March 10, 2022 11:49 pm PST by
Apple will not launch a new Mac mini until 2023, reputable analyst Ming-Chi Kuo said today on Twitter, revising a previous prediction he made prior to Apple's spring event earlier this week. Last weekend, Kuo outlined his predictions for Apple's Mac lineup in 2022 and 2023, claiming that Apple plans to release a new high-end Mac mini and a 27-inch external display without mini-LED in 2022,...

Popular Stories

iPhone 14 Pro Purple Front and Back MacRumors Exclusive

iPhone 14 Pro Renders Highlight Multiple Design Changes

Wednesday May 25, 2022 8:56 am PDT by
Leaker Jon Prosser today shared ostensibly accurate renders of the iPhone 14 Pro, providing the most accurate look yet at what the device could look like when it launches later this year. In the latest video on YouTube channel Front Page Tech, Prosser revealed renders of the iPhone 14 Pro made by Apple concept graphic designer Ian Zelbo, highlighting a range of specific design changes...
iPad Pro USB C Feature Coral

Deals: Apple's iPad Pro Reaches Up to $449 Off in Amazon's Latest Sales

Wednesday May 25, 2022 10:09 am PDT by
Amazon is marking down a wide variety of 11-inch and 12.9-inch iPad Pro models this week, with prices starting as low as $749.00 for the 11-inch tablet. You'll find the full list of sales below, all of which can be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep...
apple account card

Wallet App Now Supports Apple Account Cards on iOS 15.5

Wednesday May 25, 2022 5:01 pm PDT by
Apple appears to have recently updated the Wallet app to allow users to add an Apple Account Card, which displays the Apple credit balance associated with an Apple ID. If you receive an App Store or Apple Store gift card, for example, it is added to an Apple Account that was previously visible in the App Store and Apple Store apps. As of today, the Apple Account balance can also be added to...
iphone 13 pro max display bleen

iPhone 14 Max Reportedly Weeks Behind Schedule [Updated]

Thursday May 26, 2022 7:25 am PDT by
The iPhone 14 Max is currently behind schedule by around three weeks, according to Haitong International Securities analyst Jeff Pu. Yesterday, Nikkei Asia reported that at least one iPhone 14 model was three weeks behind schedule due to the impact of lockdowns on Apple's supply chains in China, but it was not clear which iPhone 14 model this related to. Now, Pu has clarified that the model...
iPhone 13 Always On Feature

iPhone 14 Pro Screen Refresh Rate Upgrade Could Allow for Always-On Display

Tuesday May 24, 2022 7:23 am PDT by
Last year's iPhone 13 Pro models were the first of Apple's smartphones to come with 120Hz ProMotion displays, and while the two iPhone 14 Pro models will continue to feature the technology, their screens could well boast expanded refresh rate variability this time round. To bring ProMotion displays to the ‌iPhone 13 Pro models‌, Apple adopted LTPO panel technology with variable refresh...
Apple Tap to Pay iPhone

Apple Stores Rolling Out iPhone-to-iPhone Contactless Payments Starting Today

Wednesday May 25, 2022 6:54 am PDT by
Apple in February unveiled a new "Tap to Pay on iPhone" feature that will allow compatible iPhones to accept payments via Apple Pay, contactless credit and debit cards, and other digital wallets, with no additional hardware required. Apple began testing the feature at its Apple Park Visitor Center earlier this month, and now Bloomberg's Mark Gurman has tweeted that the feature will begin...
apple tv 4k design green

Apple Releases tvOS 15.5.1 for Apple TV HD and Apple TV 4K

Wednesday May 25, 2022 9:42 am PDT by
Apple today released tvOS 15.5.1, a minor update to the tvOS operating system that first launched in September 2021. tvOS 15.5.1 comes about 10 days after the launch of tvOS 15.5. tvOS 15.5.1 can be downloaded over the air on the Apple TV through the Settings app by going to System > Software Update. ‌‌‌‌‌‌Apple TV‌‌‌‌‌‌ owners who have automatic software updates...