Keyboard Lag after Big Sur

papouspavlos wrote:

I am experiencing issues with my keyboard after updating to Big Sur yesterday, it seems to have mind of it's own, typing anything is a challenge as I have to recheck every key stroke, and it seems to effect every key randomly even the space bar!...is anyone experiencing anything similar?

What exact Mac is this?

Internal keyboard / external keyboard?

Have you rebooted?

have you tried resetting NVRAM/PRAM hthttp://support.apple.com/kb/ht1379 ?

Try a SafeBoot https://support.apple.com/en-us/HT201262

Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc. Login and test. Reboot and test as caches get rebuilt.

In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.

Awesome, I almost returned my MBP for this issue but your solution fixed it!

Strangely it only occurred on the built-in keyboard for me, so I had been working with an external keyboard as a workaround.

Guys, just an update.

I was able to fix the problem by resetting the bluetooth module.

That fixed the problem BOTH on the internal keyboard AND the bluetooth keyboard. My system is running fine now.

In case it helps anyone, what I did what's to click on the bluetooth icon in the menu bar while holding down SHIFT OPTION.

You will see an option "Reset the bluetooth module". That did the trick for me.

I heard when that doesn't fix it, the other option "Factory reset all connected Apple devices" will fix it, but I can't say for sure as I didn't have to get that far.

Cheers,

This seems to be happening to A LOT of people (myself included), as a quick Google search will reveal.

I have a MBP 16" 2019 and I've tried everything described here to no avail.

Funny enough, booting into Safe Mode made everything much, much worse. Typing while in safe mode is nearly impossible as the typing lag is 10-15s (not kidding).\

I do have an original Apple bluetooth keyboard and I can confirm the typing lag occurs on both keyboards (the builtin one is not any better).

Same problem on my 2019 16" with Big Sur 11.0.1. Keyboard lag via the built-in keyboard in all modes (normal, safe mode, single user mode). No peripherals connected. Clean install. There was another comment here about safe mode being nearly usable that I can also attest to. I wish I had known about these issues before I upgraded.

I guess we have to wait for the next OS release hoping it will address the problem. In the meantime i am also trying to figure out why starting up my iMac is like -> i go make my coffee, bake cookies and still the desktop icons isn't there....And that on an iMac (Retina 4K, 21.5-inch, 2017) purchased in March 2018 with 3.6 GHz Quad-Core Intel Core i7, 32 GB 2400 MHz DDR4, and Radeon Pro 560 4 GB( Fusion Drive 1TB) I did try all resets, reboots etc. but nothing helped and all that once i upgraded to Big Sur. If the next OS release doesn't fix the problem i guess i just have to clean instal Big Sur.. and thought the PC world had such issues....

FYI I was dealing with this same issue...

1) Tried resetting the PRAM - didn't work

2) Tried resetting the Bluetooth Module - didn't work

3) did the Factory Reset of all connected Apple Devices and that did it for me :)

me!!! it space bars on its own, adds charters i dont want back space doesn't work, I choose not to correct this as I typed so you can see what is opening. son frustrating. what do i doo????

As Lenileto said above, his advice to fix the problem is by resetting the bluetooth module(no matter if you are using an external mouse/keyboard or not). Click on the bluetooth icon in the menu bar while holding down SHIFT OPTION. In case ShiftOption didn't work try the Factory reset all connected Apple devices

Nothing mentioned here worked for me, so I backed up my data and downgraded to Catalina. No lag! No problems at all. I hope the issues with Big Sur get sorted out. I liked the direction MacOS is taking, but I didn't pay $3k for a new MacBook Pro to run sluggish due to software issues.

same thing happening here to me on my Imac since downloading Big Surexcept i have a corded non-BT DasKeyboard and only seems to be affecting certain apps like imessage. super delays in typing . but not all is like this. for example no issues typing in Chrome browser right now. wierd!

Thank you, LeniNeto! Although resetting the Bluetooth module didn't help me, you still lead me to the right direction. Factory resetting all connected Apple devices fixed it for me. (iMac Retina 5k, 27 in, 2020)

Heads up: if you end up having to factory reset all connected Apple devices, you'll need to manually reconnect both your Magic Keyboard and Magic Mouse by connecting them to your computer via a USB-C to Lightning Cable or a Lightning to USB cable.

> After manually connecting, a pop up will show up letting you know your mouse/keyboard has been wirelessly connected; at that point you can disconnect it from the cable and continue to use as before without the keyboard lag.

For those who are dumb like me the "shift option" means holding shift and option while clicking the bluetooth menu. I was like... "holding shift down doesn't give me that menu" ;-)

Hooray. I have been having issues on the previous OS as well that I was just living with. Now it seems my computer is 90% more responsive. Why doesn't Apple just do this when they install a new OS?

@LeniNeto ‘s suggestion of SHIFT+OPTION+clicking on Bluetooth menubar icon, then “Factory reset all connected Apple devices” fixed my issue.

Before I do that, I also tried “Reset the Bluetooth module”, but that did not work.