Wireless keyboard and trackpad malfunctioning since El Capitan

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Level 1

9 points

Wireless keyboard and trackpad malfunctioning since El Capitan

Since upgrading to El Captitan I have to turn my wireless keyboard off and on after almost every system sleep in order to make it usable again. Otherwise El Cap or any app would react to keyboard strokes with a distinct delay and often by repeating a single stroke many times.

With Yosemite everything was fine.

My setup: trackpad, mighty mouse and keyboard, all wireless, on a late 2013 27" i7 iMac with 32 GB RAM, latest OS X.

Any ideas?

iMac, OS X El Capitan (10.11.4)

Posted on Apr 30, 2016 3:48 PM

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Answer 1

Apr 30, 2016 4:11 PM in response to Tomer1c

There are a number of issues to support why this could be occurring. Have you tried restarting the device? Also - are the batteries running low on the wireless keyboard and magic trackpad?

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Answer 2

Tomer1c Author

Level 1

9 points

Apr 30, 2016 5:31 PM in response to zacharyfromnsw

Hi zacharyfromnsw,

yep, batteries have already been replaced several times.

In El Cap Apple has rewritten the USB stack – and here lies IMO most probably the cause for the malfunctioning.

A work around is, to turn off the trackpad or the keyboard before sending the iMac to sleep... but, hm, I would prefer a more comfortable solution 🙂

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Answer 3

Tomer1c Author

Level 1

9 points

Aug 25, 2016 4:50 PM in response to Tomer1c

Am I really the only guy with this bug?

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Answer 4

Tomer1c Author

Level 1

9 points

Aug 25, 2016 4:52 PM in response to Tomer1c

Really?

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Answer 5

samuellk

Level 1

54 points

Aug 25, 2016 4:55 PM in response to Tomer1c

Hi Tomer1c!!!

Welcome to Apple Support Communities!!!

Try disabling Bluetooth then restarting your iMac then turn it back on. reconnect ONLY THE TRACKPAD!!! test it. then disconnect the trackpad and connect the mighty mouse and test it. do the same for the Magic Keyboard too.

I hope this solves your problem!!!

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