USB Keyboard not working after sleep

I reported the same problem on this post a number of weeks ago.

I can now report that since the latest update last week (10.15.3) the problem seems to have resolved. I used to get this issue 3 or 4 times a day and since the update last week I have not had a single instance of the keyboard failing to wake up with the system through multiple USB hubs.

I hope this applies to everyone but it is currently what I am experiencing.

Not for me. :( I have the latest Catalina update (10.15.3), but I still have problems with my external USB keyboard and nothing has changed since I posted about it some months ago. Usually I need to unplug ang plug again my keyboard about 3 to 4 times (sometimes just rebooting works) until it is recognized by my Mac.

Since I posted my laptop has stopped showing this problem. Was it cleared by the latest system update? I wish an Apple official would chime in, so that I can close that loop mentally... WIll post again, if the issue arises again.

I still have this problem also. The update to 10.15.3 did not work at all.

Wireless Apple Keyboard and Apple Wireless Trackpad does not connect after sleep, I need to plug USB keyboard and mouse to log in and click on "connect" (upper bar Bluetooth icon) for each in order to connect them. As you may guess this is very annoying.

I tried this and it did work one time, but after the second sleep-wake cycle I'm back to the original problem.

When you have the problem, open Terminal and run-

sudo kextload /System/Library/Extensions/a*

Unplug and plug back in your USB devices.

I've been trying to narrow down which kext is getting unloaded, and this is as far as I've gotten. This doesn't fix the issue, but gets things working to avoid a restart.

I have 4 MacBook Air 13" Early 2015 laptops that are having an issue with the externally connected Apple Model A1243 keyboard and external mouse not functioning intermittently. All 4 laptops have recently updated to Catalina 10.15.3

Reseating the keyboard and mouse USB plugs does not get the keyboard or mouse to work.

After closing a number of applications and reseating the keyboard it did start working again.

Restarting the laptop also works to get the external mouse and keyboard to function as well.

Problem continues to come back.

Wireless mice are not affected

I have this problem too. After I wake up the laptop the USB keyboard does not work unless I disconnect and reconnect it (sometimes more than once).

MacBook Pro (Retina, 13-inch, Early 2015)

macOS Catalina 10.15.3

I've been following this thread since the Catalina update, with the same issue with my Apple USB keyboard very rarely connecting with my MacBook Pro (Retina, 13-inch, Early 2015). I tried all of the suggested fixes with no success: resetting SMC, starting up in safe mode, etc. and an evening spent chatting to Apple support who suggested reinstalling the entire OS (I'm not THAT bothered) out of lack of other options. I eventually tried a last gasp that I saw on another forum for a similar issue. I connected a USB extension cable to my keyboard, and plugged that into the MacBook and for whatever reason, that has solved the issue! Thoroughly annoying, and I hope they fix this is the next OS update.

I have been following this thread for months (I posted about it in the end of 2019), with the same issue, upgrade after upgrade. Interesting the conversation from ajrigby24 with Apple support: last week, I did a CLEAN install of my Mac (Catalina 10.15.3). Since then,I have never faced this problem anymore - it seems that the issue was solved.

Mouse and keyboard both stop working after sleep on my iMac 27” 2019, very annoying to pay 3 grand for a computer that does this. Especially if your rendering something over night, and come back to a computer that you have to restart, thank you Apple!

Having this exact same problem with a brand new 2020 MacBook Air. In fact, between the debacle of getting both a DisplayPort monitor and my USB mechanical keyboard to work (the keyboard still loves to simply disconnect), I’d say this is the worst “new computer” experience I’ve had in years. All of this has been absolutely flawless on a Windows machine.

I’m honestly shocked at the low quality of this experience. This might be enough to make me return this machine.

Had this problem for months as well. Tried all the usual resets (SMC, PRAM, etc.) without success. This would also happen on both my Macbook Pro's (2016 and 2017). I did a combo update with 10.15.4 last week and I have not had that problem since.

Have the exact same issue. I have external Dell monitor connected to my MacBook Pro (Early 2015) and external bluetooth mouse and external Apple keyboard and magic trackpad 2 connected. Every time the USB keyboard stops working as soon as I plug it out and plug back in and the same is true after my laptop goes to sleep. I have to repeat plugging in and plugging out the keyboard USB to my laptop and after several tries it start to work again. Very annoying.. 😔

Since October of last year I was dealing with this problem in 2 different notebooks (MBP 13" 2019 and Macbook 12" 2016, both with Catalina 10.15.4 and external Apple USB Keyboard). About one month ago, tired of waiting for a solution and based on some posts I read, I did a full clean install. Problem solved. Not the best solution, but I never had any other problem with my keyboards or other USB devices since.

My Bluetooth keyboard stops working periodically. I have a new Mac Mini (2018). Have found that going to login screen and logging in again resolves this problem. I believe it to be a fault with Catalina as I've not had this issue with my older MacBook Pro running High Sierra.