Some users who bought the M1 Mac mini encountered a problem, that is, the device cannot wake up the connected third-party display from sleep. This is not an issue that affects all M1 Mac mini users, but there are many user complaints on the MacRumors forum and the Apple support community, which can be traced back to when the Mac mini was first released in November.
MacRumors reader Mike said: “I have a new Mac Mini M1 with 16GB of RAM and running Big Sur 11.2.3. Every time the computer and the screen go to sleep, the computer cannot wake up the screen. In fact, after the Mini wakes up, the screen The above shows no signal’, so strictly speaking, the computer wakes up the display, but it cannot send video signals. The screen is a 34-inch LG Ultrawide 4K Thunderbolt. My 2018 MacBook Pro can wake up normally, so the display itself There is no problem. The only way I can get the Mini to send a signal to the display is to unplug and re-plug the Thunderbolt cable. This is sometimes repeated. Obviously, this is not an ideal solution.”
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This problem seems to affect various displays connected through Thunderbolt, HDMI and DisplayPort adapters, but there are also many people who have no problem at all. It is not clear where the problem is, but Apple has been working on a problem with the M1 Mac mini display that caused strange pink squares to appear on the display connected to one of the devices.
Apple is aware of this problem and may have a repair plan that will be resolved in a future update. One current solution may be to disable the function that puts the Mac mini to sleep, but this is not ideal.
Another solution is to unplug and reinsert the Mac mini’s monitor that did not respond after waking up from sleep, but this is also a bad solution. There seems to be no other solution.
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