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 (Caution)
Related Forum: Mac mini

Popular Stories

iphone se 4 modified flag edges

iPhone SE 4 With Face ID Said to Be Priced Below $500

Monday May 20, 2024 3:43 am PDT by
Apple is targeting a sub-$500 starting price for its upcoming fourth-generation iPhone SE model despite a raft of rumored upgrades coming to the more affordable device. According to leaker Revegnus on X, the U.S. launch price of the fourth-generation iPhone SE will either remain at the same $429 starting price as the current model, or will see an increase of around 10%. Either way, Apple's...
iOS 17

Apple Releases iOS 17.5.1 With Fix for Reappearing Photos Bug

Monday May 20, 2024 10:11 am PDT by
Apple today released iOS 17.5.1 and iPadOS 17.5.1, minor updates to the iOS 17 and iPadOS 17 operating system updates that came out last September. The 17.5.1 updates come a week after the launch of iOS 17.5 and iPadOS 17.5. iOS 17.5.1 and iPadOS 17.5.1 can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. According to Apple's...
iPhone 16 Camera Lozenge 2 Perspective

iPhone 16 Lineup Rumored to Come in These Two New Colors

Sunday May 19, 2024 11:08 am PDT by
Apple analyst Ming-Chi Kuo today outlined his expectations for the iPhone 16 lineup's color options, revealing that two new colors should replace two of the existing shades. Kuo outlined his expectations in a post on X (formerly Twitter) earlier today. He believes that the iPhone 16 Pro and iPhone 16 Pro Max will be available in black, white or silver, gray or "Natural Titanium," and rose....
microsoft surface pro qualcomm

Microsoft Says New Surface Pro is Faster Than 15" M3 MacBook Air

Monday May 20, 2024 3:19 pm PDT by
Microsoft is going all in on AI, today introducing a series of Copilot+ PCs that have AI-focused hardware. The new Surface Pro is one of the first Copilot+ PCs, equipped with Qualcomm's Arm-based Snapdragon X Elite processor. Microsoft is already pitting the Surface Pro against Apple's M3 MacBook Air, and in marketing materials, claims that the Surface Pro has superior processing power and...
iOS 17

iOS 17.5 Bug May Also Resurface Deleted Photos on Wiped, Sold Devices [Updated]

Friday May 17, 2024 12:24 pm PDT by
A bug in iOS 17.5 is apparently causing photos that have been deleted to reappear, and the issue seems to impact even iPhones and iPads that have been erased and sold off to other people. A Reddit user wiped an iPad following Apple's guidelines in September of 2023 before selling it off to a friend. That friend updated the iPad to iPadOS 17.5 this week, and began seeing the Reddit user's old ...
iphone se 4 modified flag edges

When to Expect the Next iPhone SE to Launch

Friday May 17, 2024 2:03 pm PDT by
It has been over two years since Apple released the third-generation iPhone SE, and rumors continue to surface about a new model. The latest word comes from The Information, which today reported that Apple plans to release a new iPhone SE with a design similar to the standard iPhone 14 in the spring of 2025. If this rumor is accurate, the iPhone SE would finally gain Face ID and a notch...

Top Rated Comments

brdeveloper Avatar
41 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
41 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
41 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
41 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
41 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
41 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)