Mac Mini M1 - Bluetooth Drops & Wake Thunderbolt Display

If you have a wired ethernet connection, turning OFF the WiFi solves all the problems. Of course it should not be the right solution but its the workaround I have found to continue doing my work.

In my case I cannot use the HDMI port as my monitor needs to use USB-C to get the correct resolution ( I'm using a Dell 49" Ultra Wide 5112x1440px ) and I have 2 monitors, so I need to use both available ports. I have tried everything you can find out there on google and here in the support area. Also experiencing iPad and iPhone disconnects and they are wired into USB ports. Using external USB Hub with external power doesn't help too.

The only workaround I have found is to disable the WiFi and get ethernet wired.

Apple still in silence.

I use a wired keyboard and a bt mouse and have the same issues. I've been able to get the screen back by unlugging the monitor cable from the mini and plugging it back in. Sometimes it works, sometimes it doesn't. What's weird is that if I unplug it and flip the cable over, it's worked every time. I took it into Apple and they think it's an OS bug and will get fixed eventually.

It is counterintuitive, but I have noticed the same thing. Screen behaves itself perfectly so far and haven't had a problem with bluetooth mouse disconnections since switching to HDMI cable.

I don't have any data points concerning the Bluetooth drops - my keyboard and mouse are wired.

Last night I set the Energy Saver pref to turn the display off after 30 minutes, but I checked the "Prevent computer from sleeping automatically..." setting.

This morning when I hit my space bar the monitor woke properly. I then forced the monitor to sleep, walked a way for a bit, and returned and the monitor woke properly again.

I should note that I'm using the Aerial screensaver, but that doesn't seem to be effecting anything one way or another.

I think it may be related to Thunderbolt cable for display.

Since switching over to HDMI to connect my monitor I no longer have an issue.

WHY are you using a Thunderbolt to mini DisplayPort adapter??? What you need is the Thunderbolt 3 to Thunderbolt 2 adapter.

https://www.youtube.com/watch?v=BN7_YgzTMlI

My workaround was to adjust Energy Saver to not let it sleep for several hours if I knew I’d be returning to the machine. Even then it’s still a little wonky trying to get screensaver to show me login screen. Fingers crossed there’s a supplemental update soon as this is going to get old real quick.

Thanks - unfortunately I cannot hardwire to my router based on the location of my computer in my office. One strange thing this evening that seems to be working for me though - I swapped out the TB3 cable that came with the LG Ultrawide monitor for the HDMI cable that came with the monitor. I am now connected with 3840x1600 resolution at 75Hz. Strangely enough, this has brought the monitor online every time I've tried to bring the Mini out of sleep this evening. I am optimistic this may be working for me, but I'll leave it sleeping overnight to see if it comes out of sleep in the morning as expected or if it will require another hard reboot after sleeping so long.

I forgot one step. Sorry. After the SMC reset, she also had me go the login items for my computer user account and delete all of them (I only had two), and restart the computer. That seemed to improve the persistence of the problems but they were still occurring. After that, she had me create the second account, etc., as noted in my prior post.

I've been experiencing the same with my mouse losing connection, I haven't been able to find a fix, hoping Apple sends out a fix soon, its very frustrating. To get around the display issue, I set my Mac mini to never put the display to sleep and then set the screen saver to come on after a set amount of time.

I would say you should return it and exchange . That’s what I did . Mine has been working fine ever since

Sounds like you have an Apple Cinema Display, NOT a Thunderbolt Display, those two may look the same on the exterior, but they are NOT the same. I haven't seen videos or photos of it yet, but people with them are saying that the 27" THUNDERBOLT DISPLAY does indeed work with M1 Macs. The only thing you need is the Thunderbolt 3 to Thunderbolt 2 adapter from Apple.

I have the Mac mini M1 with 16GB memory and 512GB SDD, 49" Dell monitor plugged on USB-C and a 23" Dell monitor plugged on HDMI. 2 Magic 2 keyboards, Magic Trackpad, Beats Studio 3, Apple Watch and a Logitech MX mouse using it's own bluetooth adapter. If I leave the Wi-Fi On, the bluetooth connectivity on all devices turns into a mess at the exactly same time. When I say mess I really mean it. Looks like the M1 Macs Just Don't Works :(

It is strange... but I am happy to say that upon coming down to my office this morning and hitting the spacebar, the Mini woke up and the display opened up to the Lock Screen with no problems whatsoever. It is bizarre because I know others have described this same problem with HDMI instead of TB - but switching to the HDMI seems to have solved the problem for me.