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.

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,

@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.

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?

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 :)

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.

After all the troubleshooting my iMac(iMac (Retina 4K, 21.5-inch,2018, 3.6 GHz Quad-Core Intel Core i7, 32 GB 2400 MHz DDR4 ,Radeon Pro 560 4 GB) was still very slow(although the lagging issue was resolved) so i decided to back all my data up and then reinstall Big Sur from scratch(erasing all data), iMac is now back to normal and functioning as it should

resetting the bluetooth module worked for me, at least for now.

The ShiftOption didn't work so i tried the factory reset and that did the trick(iMac Retina 4K, 21.5-inch, 2017) Thanks for your help

Smithmac_99 wrote:

Hey there. When I push shift, I don’t have the reser Bluetooth module? Thoughts.

Shift Option key(s) both keys and click the BT icon.

I saw seeing lag with both the Magic Mouse, and keyboard running Mac OS 11.1 on a MacBook Pro (15-inch, 2017). The Bluetooth module reset also appears to have resolved for me. Thanks for the tip!

MacBook Pro (15-inch, 2016)

I am having all sort of different issues with keyboard strokes. For example, typing in fields such as GET INFO, not only do I get this un-fluid motion with some type of lag and also this optical illusion type thing I am seeing, like disappearing text after I have typed in a stroke, I also have to repeat a name change of a file twice, because it doesn't register the first time. It is time consuming. I cannot even explain or put into words what it is doing, it is so strange and very very frustrating. Also typing into fields on SAFARI. When typing to log into website accounts on Safari I get the beach ball for aboute a minute after every key stroke. It is driving me nuts.

I am also experiencing some other issues not relating to keyboard issues.

I only upgraded a couple of weeks ago.

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).