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Keyboard lag and other keyboard issues

Hello everybody! I've upgraded to Lion and am mostly enjoying the new OS. However, a problem that I've found quite prevalent has been input lag. It's not happening as I type this, but sometimes when I type something it'll take several seconds for it to come up, with the computer slowly bringing up each letter. It's never done this before, and processor usage doesn't go up when it happens. I also had a problem not too long ago where the keyboard stopped inputting text. I could still use it to switch Spaces and show desktop and such, but it couldn't be used to type into any app. Unplugging and replugging didn't fix, and I ended up having to restart. Is anybody else having these issues? And if so, has anyone found a fix?

iMac, Mac OS X (10.7), 17" 1.83 GHz Core 2, 2GB RAM

Posted on Aug 4, 2011 9:53 PM

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31 replies

Feb 15, 2012 9:17 AM in response to coldcaption

I reached out to Smile Software regarding the keyboard lag issue and they confirmed there is an issue with TextExpander. They sent me beta version 3.4.1b2, which I've been using for about a week with no problem. If you're experiencing the same problem, I recommend you contact Smile Software support at textexpander [at] smilesoftware [dot] com and ask them to send you the link to 3.4.1b2.

May 21, 2012 12:02 PM in response to coldcaption

I came to this thread with a similar problem with typing lags. I quit a number of background processes I suspected could cause this issue as well as some mentioned here and in other threads related.


It turns out I spotted one called "kotoeri" which I didn't recognize. I googled that and it's a Japanese input method. It turns out I had enabled that at some point in the language & text pref pane (input sources). I occasionally need to write something short in japanese, so that made sense.


the moment i disabled that, keyboard lag was gone! so in this case there's no 3rd party software conflict issue, this is all Apple.


The strange thing is that the "kotoeri" process is still running (shown in activity monitor).

May 21, 2012 12:03 PM in response to Loren Ryter

Kotoeri is a set of Japanese keylayouts belonging to the default, basic system keylayouts, so I doubt lag is due to activating Kotoeri, unless you had previously deleted the Japanese fonts, which may indeed lead to lag issues.

Or, to be clearer, activating Kotoeri cannot be the main cause of that behavior, it must be associated to something else, e.g. deleting fonts required for japanese.

Jul 7, 2014 1:45 PM in response to korm

korm wrote:


I've had some success eliminating the keyboard lag by going to System Preferences > Universal Access > Keyboard and toggling the "Slow Keys" option on and off. I always have Slow Keys off, but toggling it seems to cause a reset of the setting.

After a full day of testing -

You Solved it for me as well.

I know it's an older posting - but nothing tried prior was working -

I was desperate - Hit up Google search - and got here on one click.

Thanks a Ton.

Keyboard lag and other keyboard issues

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