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M1 Mac mini users reporting display issues

Apple M1 Chip Mac Mini Lg Display Gaming Screen
Apple M1 Chip Mac Mini Lg Display Gaming Screen (Image credit: Apple)

What you need to know

  • Multiple users are reporting issues with the M1 Mac mini.
  • They say the device will not wake their external display from sleep.

A new report says some M1 Mac mini users are experiencing issues with external displays.

From MacRumors:

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. 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.

One reader described how their Mac mini would not wake its displays after sleeping despite using two different displays and two different cables, another user explained:

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.

That user said the only fix they had found was to unplug their Thunderbolt cable and then plug it back in. The report says the issue is affecting users regardless of which port they use, Thunderbolt, HDMI, or DisplayPort. Apple is reportedly aware of the situation, but the only possible fix in the meantime is the unplugging solution or disabling the sleep function.

Have you experienced any similar issues? Let us know!

Stephen Warwick
News Editor

Stephen Warwick has written about Apple for five years at iMore and previously elsewhere. He covers all of iMore's latest breaking news regarding all of Apple's products and services, both hardware and software. Stephen has interviewed industry experts in a range of fields including finance, litigation, security, and more. He also specializes in curating and reviewing audio hardware and has experience beyond journalism in sound engineering, production, and design.

Before becoming a writer Stephen studied Ancient History at University and also worked at Apple for more than two years. Stephen is also a host on the iMore show, a weekly podcast recorded live that discusses the latest in breaking Apple news, as well as featuring fun trivia about all things Apple.

5 Comments
  • I've had this issue from the start and have had a replacement Mac Mini M1, but still the same. I am using a USB C to Displayport cable and find that even when the monitor does wake, it has lost all scaling settings and always reverts to default for this display. That is extremely annoying! When it doesn't wake, I have found switching the monitor off and then back on work, as does unplugging/plugging the cable back in. I've also had the monitor not wake after a reboot too.
  • This is not news, I reported this to Apple in late December and posted about it on Reddit https://www.reddit.com/r/macmini/comments/kee17u/lg_display_will_not_wak... Apple has known about this and has not fixed it, in fact I have called several times about it and they have closed out my ticket. Apple's support around this issue has been terrible.
  • "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. This is not an issue that's affecting all ‌M1‌ ‌Mac mini‌ owners" Wow! There are Mac Mini owners, who use first-party displays? :D
    What an explanation!
  • Yea, I was going to rag on "A new report says some M1 Mac mini users are experiencing issues with external displays."
    So it's not happening with the built in displays?
    I'm using an M1 Mac Mini with a Dell monitor, USB-C to USB-C. Haven't had an issue, knock in laminated particle board.
  • Having the same issues with my M1 MacBook Pro. HDMI cable attached to hub dongle.