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.
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.
Popular Stories
Apple is looking for a "breakthrough" with its push into wearable AI devices, including an "AirTag-sized pendant," according to Bloomberg's Mark Gurman.
In a report this week, he said the pendant is reminiscent of the failed Humane AI Pin, but it would be an iPhone accessory rather than a standalone product.
The pendant would feature an "always-on" camera and a microphone for Siri voice...
Apple Watch is now eleven generations in, and packed with useful features that are easy to miss at first glance. To help you get more out of your new device, we've rounded up 15 practical tips you might not have discovered yet, including a few that long-time users often overlook.
Bounce Between Two Apps
On your Apple Watch, double-press the Digital Crown to see a deck of all currently...
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max.
One thing worth...
Apple is expected to launch a new foldable iPhone this year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that Apple will release its first foldable device in 2026.
Subscribe to the MacRumors YouTube channel for more videos.
Below, we've collated an updated set of key details that have been leaked about ...
Apple will announce its rumored low-cost MacBook at its event on March 4, with the device coming in a selection of bold color options, according to a known leaker.
Earlier this week, Apple announced a "special Apple Experience" for the media in New York, London, and Shanghai, taking place on March 4, 2026 at 9:00am ET.
Posting on Weibo, the leaker known as "Instant Digital" said that the...
