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)
Related Forum: Mac mini

Popular Stories

ios 18 4 carplay

Apple Upgrades CarPlay in Two Ways

Wednesday March 12, 2025 6:05 am PDT by
The upcoming iOS 18.4 update for the iPhone includes a smaller but meaningful improvement for Apple's in-car iPhone mirroring system CarPlay. Specifically, CarPlay now shows a third row of icons, up from two rows previously. However, this change is only visible in vehicles with a larger center display. For example, a MacRumors Forums member noticed the change in a Toyota Tundra with a...
Apple More Personal Siri Ad

John Gruber Says 'Something is Rotten' at Apple

Wednesday March 12, 2025 7:39 pm PDT by
Daring Fireball's John Gruber today shared some strongly-worded comments about Apple's delayed personalized Siri features. Gruber is a well-known Apple pundit who has been writing about the company for more than two decades. In a blog post titled "Something Is Rotten in the State of Cupertino," Gruber said Apple's credibility has been "damaged" by the delay:Keynote by keynote, product by...
airpods pro 2 gradient

AirPods Pro 3 Launch Now Just Months Away: Here's What We Know

Tuesday March 11, 2025 3:26 am PDT by
Despite being released over two years ago, Apple's AirPods Pro 2 continue to dominate the wireless earbud market. However, with the AirPods Pro 3 expected to launch in 2025, anyone thinking of buying Apple's premium earbuds may be wondering if the next generation is worth holding out for. Apart from their audio and noise-canceling performance, which are generally regarded as excellent for...
Apple Maps vs Google Maps Feature

iOS 18.4 Adds a Highly-Requested Setting to iPhones — But Not in U.S.

Wednesday March 12, 2025 1:05 pm PDT by
iPhones are finally getting a much-requested setting, but availability is limited. The upcoming iOS 18.4 update introduces an option to set a default navigation app, other than Apple Maps, but unfortunately this new setting is limited to users in the EU. There, you can now set an app like Google Maps or Waze as your default navigation app on the iPhone by opening the Settings app and tapping ...
iphone 17 pro asherdipps

iPhone 17 Pro Max Rumors Allegedly Refer to 'iPhone 17 Ultra' Model

Friday March 14, 2025 7:56 am PDT by
If you've been following iPhone rumors over the last few years, you may remember reading reports that Apple flirted with the idea of introducing a super high-end "Ultra" model that would either replace its Pro Max device or sit above it in Apple's smartphone hirearchy. These reports appeared in the pre-launch iPhone 15 and iPhone 16 rumor cycles, but ultimately came to nothing. Now though, the...
iPhone 17 Pro Render Front Page Tech

iPhone 17 Pro Machined Parts Leak Reflects Camera Redesign Rumors

Thursday March 13, 2025 3:07 am PDT by
Apple's upcoming iPhone 17 Pro models are expected to feature a significant design overhaul, and a new image apparently taken on an assembly line for the unreleased devices appears to confirm the biggest rumored change. Render of an iPhone 17 Pro model shared by Jon Prosser The iPhone 17 Pro and iPhone 17 Pro Max are rumored to adopt a horizontal camera bar reminiscent of Google's Pixel...
Generic iOS 19 Feature Mock Light

iOS 19 Will Bring Biggest Design Overhaul Since iOS 7

Monday March 10, 2025 12:17 pm PDT by
Apple is planning for a major design overhaul of the iPhone, iPad, and Mac interfaces with the introduction of iOS 19, iPadOS 19, and macOS 16 later this year, reports Bloomberg. The update will "fundamentally change" the look of Apple's operating system, introducing a more consistent cross-platform experience. Apple plans to update the style of icons, menus, apps, windows, and system...
Sad Siri Feature

Kuo: Apple Knows Apple Intelligence is 'Underwhelming' and Won't Drive iPhone Upgrades

Thursday March 13, 2025 9:32 am PDT by
The Apple Intelligence features that Apple introduced with iOS 18 are not pushing people to upgrade their iPhones, Apple analyst Ming-Chi Kuo reiterated today. Apple's recent Siri failures are also going to have an impact on 2025 iPhone shipments, which the market is beginning to realize. As early as last July, Kuo said expectations that Apple Intelligence could drive iPhone upgrades were...
Sad Siri Feature

Kuo: Cook Should Personally Address Siri Apple Intelligence Failure

Thursday March 13, 2025 4:02 pm PDT by
Apple made a major misstep with the way that it handled the delay of Apple Intelligence features for Siri, Apple analyst Ming-Chi Kuo said today. Announcing the delay through a press statement was a bad decision, and Apple should instead have gone through official channels. Kuo referenced the well-known "Antennagate" PR crisis when the iPhone 4 launched in 2010, and the way that then Apple...

Top Rated Comments

brdeveloper Avatar
52 months ago
The same happens with my 2018 Mini with Catalina. It's not a M1-only issue!
Score: 43 Votes (Like | Disagree)
anshuvorty Avatar
52 months 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: 19 Votes (Like | Disagree)
djc6 Avatar
52 months 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: 17 Votes (Like | Disagree)
CC77 Avatar
52 months 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: 15 Votes (Like | Disagree)
!!! Avatar
52 months 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: 11 Votes (Like | Disagree)
PinkyMacGodess Avatar
52 months 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: 8 Votes (Like | Disagree)