M1 Mac Mini Won't Wake Connected Displays, Some Owners Complain

Some customers who have purchased an M1 Mac mini have been experiencing an issue that causes the machine not to wake a connected third-party display from sleep.

m1 mac mini vignette
This is not an issue that's affecting all ‌M1‌ ‌Mac mini‌ owners, but there are numerous complaints on the MacRumors forums and the Apple Support Communities dating back to November when the ‌Mac mini‌ was first released. MacRumors reader gooimac explains:

My ‌M1‌ (8gb/256) ‌Mac mini‌ doesn't seem to want to wake my displays after its been sleeping. I have tried with 2 different displays with 2 different HDMI cables with the same thing occurring on each one. I am currently only using one at a time. I also noticed some pink squares/graphics glitches on the Big Sur boot/log in screen (with the coloured background, not the black and white boot up)

MacRumors reader Mike, who emailed us about the issue, has seen the same problems.

I have a new Mac Mini ‌M1‌ with 16 GB of RAM running Big Sur 11.2.3 and every time the computer and screen go to sleep, the computer will not be able to wake the screen up.

Actually, I get "No Signal" displayed on the screen after the Mini wakes so technically the computer wakes the monitor but it fails to send a video signal. The screen is a 34" LG Ultrawide 4K Thunderbolt. It wakes fine with my 2018 MacBook Pro so there's nothing wrong with the display itself.

The only way I can get the Mini to send a signal to the display is to unplug and replug in the Thunderbolt cable. Sometimes repeatedly. Obviously, this is not an ideal solution.

This issue appears to be affecting a wide range of displays that connect over Thunderbolt, HDMI, and DisplayPort adapters, but there are also plenty of people who are having no issues at all.

It's not clear what the problem is, but Apple has been looking into one ‌M1‌ ‌Mac mini‌ display issue that causes strange pink squares to appear on displays connected to one of the machines.

Apple is aware of the issue, and there could be a fix in the works that's coming in a future update. One solution for now may be to disable the feature that puts the ‌Mac mini‌ to sleep, but that's not ideal. The other solution is to unplug and replug in a display that's not responding after a ‌Mac mini‌ wakes from sleep, but that too is an inelegant solution. There appears to be no other fix available at this time.

Related Roundup: Mac mini
Buyer's Guide: Mac Mini (Buy Now)

Top Rated Comments

brdeveloper Avatar
2 weeks ago
The same happens with my 2018 Mini with Catalina. It's not a M1-only issue!
Score: 39 Votes (Like | Disagree)
anshuvorty Avatar
2 weeks ago
This isn't just a M1 Mac Mini issue, this also affects the M1 MBA, which I have. I have to disconnect my Thunderbolt dock connection and reconnect it and then the display works perfectly again.
Score: 17 Votes (Like | Disagree)
CC77 Avatar
2 weeks ago
If it doesn't wake a third party display, and Apple no longer produces any first-party consumer displays (I'm not counting a $5K Pro Display XDR as "consumer") doesn't that mean....it doesn't wake any displays?
Score: 14 Votes (Like | Disagree)
djc6 Avatar
2 weeks ago
I've had this problem for years with my 2018 mac mini, on anything connected to the HDMI port. Both the 2018 and M1 mac mini use the same MegaChips MCDP2920A4 DisplayPort 1.4 to HDMI 2.0 converter chip inside.
Score: 14 Votes (Like | Disagree)
!!! Avatar
2 weeks ago

My Intel based Mini, just today, would not show video on the TV hooked to the HDMI port. The TV kept saying 'No Connection'.

I had to hold the power button in to shut it down, then hit it again, and then I finally got video. Weird...
My 2018 Mini does this all the time, if I'm gone for 15-30 mins it won't reconnect to the display after I wake it. That's why I no longer turn the display off unless I'll be gone for more than an hour. Thanks Apple.
Score: 10 Votes (Like | Disagree)
PinkyMacGodess Avatar
2 weeks ago

The same happens with my 2018 Mini with Catalina. It's not a M1-only issue!
Mine too this afternoon. It's done it a couple times in the past month that I've had it. I've never had issues with earlier Minis I've had. I wonder if it's Big Sur?
Score: 7 Votes (Like | Disagree)

Top Stories

samsung experience 1

Samsung's 'iTest' Lets You Try a Galaxy Device on Your iPhone

Thursday April 8, 2021 12:42 pm PDT by
Samsung has launched "iTest," an interactive website experience that's designed to allow iPhone users to test out Android on a Galaxy device, or "sample the other side," as Samsung puts it. Subscribe to the MacRumors YouTube channel for more videos. The iTest website is being advertised in New Zealand, according to a MacRumors reader who came across the feature. Visiting the iTest website on...
sonny 2021 ipad mini pro dummies

Leaked Dummy Units Show iPad Mini 6 With Thick Bezels and Home Button, New iPad Pro Models

Thursday April 8, 2021 2:11 am PDT by
Rumors suggest Apple will release refreshed versions of the iPad mini and iPad Pro models in the first half of this year, potentially as soon as this month, and a new leak today has provided us with a possible preview of what to expect in terms of the devices' overall design and camera prospects. Tech leaker and Apple blogger Sonny Dickson this morning shared images on Twitter showing dummy ...
iMessage Android featured

Apple's Rationale for Not Bringing iMessage to Android Revealed in Legal Documents

Friday April 9, 2021 2:22 am PDT by
It's no secret that Apple sees iMessage as a big enough selling point to keep the service exclusive to Apple devices, however new court filings submitted by Epic Games in its ongoing lawsuit with the company reveal just how Apple executives have rationalized their decision not to develop a version of iMessage for Android. Apple clearly recognizes the power that iMessage has to keep users...
fake airpods 3

Counterfeit 'AirPods 3' Hit the Market Prior to Official Announcement

Friday April 9, 2021 2:45 am PDT by
Apple is expected to launch the third iteration of AirPods in the third quarter of this year. Rumors and reports suggest the new AirPods will feature an updated design more in line with the AirPods Pro, but lacking in "Pro" features such as active noise cancellation. Despite AirPods 3 not yet being officially announced by Apple, counterfeit products of the unreleased earbuds have already hit ...
nba tracking prompt orange

Two-Thirds of iPhone Users Expected to Block Ad Tracking

Friday April 9, 2021 7:19 am PDT by
As many as 68 percent of iPhone users are expected to deny advertisers permission to track them thanks to Apple's App Tracking Transparency feature, in what is beginning to look like a significant blow to the advertising industry (via AdWeek). With the launch of iOS 14.5, apps will have to receive explicit user permission before accessing an iPhone's advertising identifier or IDFA, which is...
iPhone 13 Battery Life Feature

DigiTimes: iPhone 13 Pro Models to Feature 120Hz ProMotion Refresh Rate and 15-20% Less Power Consumption

Friday April 9, 2021 12:52 am PDT by
The two premium "Pro" models of the upcoming iPhone 13 lineup will be equipped with a low-power LTPO display, enabling the iPhones to have a 120Hz refresh rate, according to industry sources cited by Taiwanese publication DigiTimes. According to today's paywalled report, Apple suppliers Samsung and LG Display are in the process of converting parts of their production capacity to produce LTPO ...
ipad pro and macbook pro

iPad and MacBook Production Reportedly Delayed Due to Global Chip Shortage

Thursday April 8, 2021 2:31 am PDT by
Apple is facing a global shortage of certain components for some of its MacBook and iPad models, causing the Cupertino tech giant and its suppliers to postpone production of the products, according to a new report from Nikkei Asia. According to the report, MacBook production is being hindered due to the shortage of chips mounted onto the circuit board before final assembly, which is a key...
ehric

iPhone 12 Mini Missing From Top 5 Best Selling Smartphone List of January 2021

Friday April 9, 2021 4:58 am PDT by
According to market data compiled by Counterpoint Research, Apple's smallest iPhone since the 2016 iPhone SE, the iPhone 12 mini, struggled to obtain a spot in the top five list of best-selling smartphones in January of this year. According to the market data, the iPhone 12 mini came in eighth place for the best-selling smartphone worldwide in the first month of the year. However, the iPhone ...
tmobile 5g modem

T-Mobile Launches Unlimited 5G Home Internet for $60/Month

Wednesday April 7, 2021 2:18 pm PDT by
T-Mobile today hosted an Un-carrier event where the company announced the launch of a a new 5G home internet plan, which is priced at $60 per month and offers unlimited data. The service is available to more than 30 million Americans across much of the United States, including 10 million households in rural areas not typically able to access reliable broadband. Connectivity will be either 4G ...
apple find my network

Apple Announces Find My Network With Support for Third-Party Devices

Wednesday April 7, 2021 10:06 am PDT by
Apple today announced the launch of its Find My network accessory program, which is designed to allow third-party Bluetooth devices to be tracked in the Find My app right alongside your Apple devices. According to Apple, the first accessory companies to take advantage of the new Find My integration include Belkin, Chipolo, and VanMoof, with devices set to be available beginning next week. ...