Mac Mini M1 - Bluetooth Drops & Wake Thunderbolt Display

Hi All,


I have a 2020 M1 Mac Mini. It hooked up to my Apple Thunderbolt Display 27" via an Apple Thunderbolt to Mini Display Adaptor. (This worked great with my old MacBook Pro 2019) I am also using the Black Apple Magic Keyboard and the Black Magic Mouse 2


Since getting the M1 Mac Mini I have noticed a couple of hardware issues.


First, 2 flashing pixels at the top of my screen. It might have been coincidence, but they appeared as soon as I changed from MBP to Mac Mini - I don' have the MBP anymore so I can test the thory.


Second, I get a lot of Mouse and Keyboard dropouts. I have reset the bluetooth module and factory reset the keyboard and mouse but it still happens.


Third, often the screen does not wake up out of sleep. I thought it was because the keyboard and mouse had lost connection, but I can still control them via VLC, this should also wake the screen, so this is now how I reboot the Mac for the screen to work again.


Just thought I'd put these issues out there incase I'm not alone.


Thanks

Posted on Nov 21, 2020 12:12 AM

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57 replies

Nov 22, 2020 5:33 AM in response to tedblight

Try this, instead of putting the Mini to sleep, select Lock Screen

instead. After some time the image will go black (preventing burn-in)

but should be re-enabled by mouse or keyboard and then log in again.


As for sleeping the new M1 Mini at all, it has such a reduced power

consumption compared to the Intel Minis that it really

isn't all that necessary. Also, using the lock screen approach,

you are instantly back where you left things instead of waiting for

the Mini to "wake up".

Dec 4, 2020 2:30 AM in response to tedblight

I've been having these same problems on my brand new M1 MacMini 8GB/512GB: Constant Bluetooth dropouts affecting my trackpad (keyboard is wired), trouble waking from sleep (taking forever to process my password before fully waking), and trouble with my second monitor coming back on after waking from sleep (primary 34" ultrawide Samsung monitor connected via HDMI; second monitor is an older model Samsung 27" model connected via USB-C port with an HDMI-to-USB C adapter).


I worked with Apple Support and they went through a variety of troubleshooting (e.g., SMC reset). None worked. Then she suggested creating a second admin user account, restarting and signing in as that new user. Sure enough, the Bluetooth problem went away, and the second monitor worked from sleep as you expected it would. Then she had me fast-switch back to my regular user account, and everything continued to work swell from there.


It's been about six hours since this troubleshooting and so far everything's working great. I hope you others find this helpful.

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Mac Mini M1 - Bluetooth Drops & Wake Thunderbolt Display

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