Keyboard and touchpad lost after sleep

have this issue on a 2015 12 inch MacBook. I used to think it was caused by a USB type C dock. I would cut the power to the dock, then the keyboard or mouse would come back.

I later bought a 2020 Mac mini. At that point I realised it is an issue with the Mac. My observations of it

-effects at least 2 different Mac hardware types

-effects keyboard plugged in to USB type A

-effects Catalina, I cannot remember if it affects earlier OSs. 10.15.1-10.15.3 all effected.

-I use wifi only for Apple Watch authentication. Not connected to any routers. I use ethernet for internet.

-no VM use.

-effects both upgraded systems, and fresh installs from the factory.

-is intermittent, and occurs rarely

-if resuming from sleep with the issue, if you sleep again, and resume later, the keyboard comes back

I have this exact same problem and i don't even have VMware Fusion installed.

I have a Late 2019 MBP 15" running Catalina 10.15.4.

My workaround is to lock/unlock the laptop until it starts responding (i have a shortcut in the touchbar to lock).

EDIT: Trying a new workaround, disabled IPv6.

Open Terminal and run "networksetup -setv6off Wi-Fi" (without quotes) where the "Wi-Fi" is your connection name.

when turn off wifi before send to sleep and wakes up it works most of the times, not always....other think that i found is bluetooth stop working, i got a message "bluetooth not available", need to restart...

i love my iphone, love my ipad, my watch, even my apple tv and mac mini... but hates this kind of things on my mbp...all problems related with energy managment, it seems pmset will help, but is useless, mpb not obbey pmset, like disable auto on when you open lid it....

For me, the exact problem only started recently after the upgrade to 10.15.4 and continued to the update to 10.15.5. There were several changes that had happened to my usage which could account for this behaviour and I have not yet pinpointed the exact cause of the problem.

1. The behaviour became apparent after I started using Mobile Hotspots to connect to the internet as opposed to the WiFi (because our WiFi was down for about a week). I connected to both Apple and non-Apple hotspots, though I can't say if the issue is different with different hotspots.
2. I cleaned my laptop keyboard recently using wet and dry cloth which made me suspect a hardware issue, but this seemed far fetched as the water involved was minimal, and the hardware damage would be more permanent.

There are a few things I tried, but the issue persists.

1. I reset SMC which had no effect
2. I rebooted to safe mode on the guidance of apple care executives, where the issue was rarer. When I booted back to the normal boot made, initially the issue seemed to have gone away but returned.
3. I upgraded to MacOS 10.15.5, which also seemed to make the issue disappear, only to appear again after a few days.

Some other important factors to consider

1. Yesterday, my WiFi connectivity was restored, but I can't conclusively say the issue is not present when connecting to WiFi because the connection soured again today. Also, I don't remember how well the installation of 10.15.5 and restoration of WiFi co-incide to conclusively say the disappearance of the issue I encountered after updating to 10.15.5 was due to reconnecting to WiFi. The restoration of WiFi came much after booting to and from safe mode, so there is no chance of there being a co-incidence.
2. I have been using Catalina for a long time, and only now am I encountering this issue.
3. Sometimes, there is a prompt that appears on opening the laptop's lid thus waking it from sleep and logging in looking for wireless keyboards. Is anyone else experiencing this as well?
4. I disabled WiFi once, and the issue disappeared, but I didn't test enough to say this conclusively.

I have the same issue with my brand new MacBook Pro13" 2020. It happened few times when I had Parallels VM on, but my switched to the "Mac OS" desktop and left my MacBook to sleep. Then when I waked it up, I got this window that says lost bluetooth keyboard connection popped up. I had to plug in something into USB-C and my keyboard would back connected.

No, you are incorrect @ngowerjo. Many of us, including me, have this problem with MacBook Air. Mine is a 2020 purchase. And further, my issue was completely resolved when I switched router and provider. I know this because I have access to both the old and the new router and have the issue only with one of them.

@Papa & Mama Bear I think this is correct, but I also think @ngowerjo is correct.

An apple macbook's OS should not have this difficulty connecting to so many routers. It should not have this limitation and needs to be fixed in an update.

As for me, I have decided to go with an ASUS router that I will update to Merlin once I receive it. I am coming from a Xiaomi (very limited in control options to try to solve) and an older TPlink Chinese only model. I hope the new router will solve, but cannot be certain... which is disappointing. The new router should have more options to play around with settings too - therefore allow a fix similar fix/solve like this one: from @mallow_pl

This answer: "I solved this problem setting IPV6 to OFF in network settings => airport => tcp tab." in this old topic: https://discussions.apple.com/thread/5248738?answerId=29499974022#29499974022

helped me to solve my problem. I did something else, however. I didn't change my network settings in macOS, but I have changed one setting in my Asus Router. In IPv6 section > Connection type - I've changed to Passthrough from the default Disable. After this - problem with keyboard and trackpad freezing is almost gone. Happened maybe 2 times in 2 weeks.

At any rate, I am hopeful that the new router (unexpected and disappointing expense) will solve the issue, as I don't easily have the opportunity to change my provider. China only has two providers.

If a solve is not forthcoming, I am left with the only other option that Apple update a fix in their OS as suggested by @ngowerjo

Will let you know how I go in a few days.

did u read the previous posts? reinstallation does not do the trick. this bug ships with apples products. wait for firmware update. it is something with the t2 chips. at least they told me in the apple store.

waiting... since dec 2019 by now.

for me also its same .... if the WIFI is ON the problem occurs and if the WIFI is turned off before Sleep there is NO issues ...... is it a Software Glitch ?? , Maybe will wait for the Next Big Update ...

johannes14

YES THE ISSUE STILL PERSISTS ON THE LATEST UPDATE AS WELL ..... for me the issue occurs only when WIFI is turned ON and i put the Mac to sleep .... Otherwise if the WIFI is turned OFF before sleep there is No issues .... is it a Software Glitch ?? will be waiting for the Next Big Update ....

no more annoying issues since big sur. even power management is working now. no more kernel panics after wake up. no more lost keyboards. no more blue tooth pop ups. no more temp freezes.

only apple can do this :)

hope it persists....

the new .4 supplemental update, is supposed to fix devices "falling asleep" on USB type C. Definitely worth a try for our problem.

@CommunityChris I have 100% correlation to VPN connection at sleep -> re-wake -> undetected trackpad (unusable mac)

apple is aware.

wait for firmware update. it's something with the t2 chip.

at least they told me in an apple store.

waiting for 8 month now. counting.

It has been fixed in Big Sur 11.0.1 stable version. Tested on my MPB 2019 13" and MBP 2019 15".