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Level 1

9 points

kernel: IOHIDSystem: postEvent LLEventQueue overflow - OS X does not react for a few seconds

Since I exchanged my internal HDD w/ a 1 TB SSHD, I occasionally (2-3 times a day) get the problem that when I click anywhere, the mouse and the keyboard controls freeze on my MacBook Pro 2011 13''.

The screen behaves normally, everything is getting updated as it should - Twitter timeline moves, Little Snitch Firewall shows network activity, activity monitor dock icon changes - but if I click anything or press a key, nothing happens.

I can move the mouse, but the screen behaves as if I didn't (if I clicked a dock icon, the dock does not move at all as if the mouse was still at that position). That state stays for 1-2 minutes if I just wait, and resolves itself much quicker (10-20 seconds) if I repeatedly redo the click I did to trigger all of this - e.g. click the dock icon I clicked, or the tab in Safari, or the send-tweet-button in Tweetbot etc.

The corresponding message in the console is the following:

kernel[0]: IOHIDSystem: postEvent LLEventQueue overflow

I realize this obviously has something to do with the SSHD not working properly, but is there anything I can do besides reinstalling OS X which would take ages with my current internet or replacing the SSHD which would also take ages with my backup being on a USB 2.0 hard drive?

All software is on the newest available version (OS X is 10.10.3).

MacBook Pro, OS X Yosemite (10.10.3), 13'' Early 2011

Posted on May 6, 2015 8:40 PM

44 replies

Oct 3, 2015 12:48 AM in response to Nikkiflausch

Same here.

That is the worst error I've ever met..

There is no clue why does it happen, when does it happen, and how to solve it.

I faced that issue when I installed the first El Cap. public beta.

And in Second public beta, I hoped Apple solved that problem, but it didn't be fixed.

So I gave up and backed to Yosemite, and boom, that happened in Yosemite, too. (What the..)

On Oct. 1st, I clean-installed official El Cap., and yes, I faced that issue, and guess what, I didn't install any app yet but it happened.

Now I'm thinking, is this a hardware issue or not.

Because it is hard to find same issue in my friends' Macs. They usually use similar apps with me because they are in same major with me.

That means their system environments are similar with me. But only I faced with this issue.

Maybe we have to check our SSD or Network antenna or graphic card or.... anything...

Someone who is facing with this issue should talk with Apple guys seriously I think.

I want to do that, but sadly, in my country there is no Genius Bar so I cannot talk with Apple guys.

Who can talk with Apple guys? Please appeal this issue seriously to them....

P.S. - I really wonder why Apple made this community system... I feel Apple guys don't see our posts. They just gave a empty web board to us and said, "Hey, share your problems each others freely. We won't touch you (and that means we won't help you). Just chat with other muggles. Ha.Ha.Ha!"

Oct 3, 2015 2:58 AM in response to Nikkiflausch

Well, I just experiences that issue in Safe mode, too.

Westcoo

Level 1

0 points

Oct 4, 2015 1:49 AM in response to ustinovahn

I've taken several screen shots showing the IOHID Error and what was happening before and after. Can anyone shed any light on it?? Someone mentioned about going to the Genius Bar and getting them to look at the error's, I've been doing this since April/May of this year with out any results. I've had most of the hardware replaced (track pad, RAM, Top case and logic board) and nothing fixed the issue. I've also just bough a brand new early 2015 MacBook Pro upgraded to El Captian and YES the error is also on this machine and the screen shots are from the 2015 MacBook Pro.

pane2k2

Level 1

0 points

Oct 4, 2015 3:01 AM in response to Westcoo

did you restore from a backup on the new macbook or did you leave it as it was?

Westcoo

Level 1

0 points

Oct 4, 2015 3:05 AM in response to pane2k2

No this was a brand new install. My 2013 MacBook Pro has also had a clean install and the Hard Disc reformatted by Apple and this didn't work either.... If I connect a Magic Mouse the error goes away. It only happens when I'm using the Track Pad. If I connect a Bluetooth Track Pad the error goes away.

Oct 4, 2015 4:14 AM in response to Nikkiflausch

Yesterday I installed nvidia web driver by nvidia and checked 'reduce transparency' option.

Since that time I haven't experienced that issue yet.

Please try this method if you are using Mac with nvidia graphic card and check that works to solve that issue.

Oct 4, 2015 9:23 AM in response to Nikkiflausch

Never mind... it just happened.. with Chrome once, and with Transmission next.

Oct 5, 2015 12:49 AM in response to Nikkiflausch

Well, I can just chime in, have no solution either. I have tried making another user account (problem still occurs), unclean install (dito), clean install + restoration with migration assistant (dito). Must be hardware-related or some kind of OS bug that only happens to a few people. Since reports of this issue are isolated, it is unlikely Apple can/will do anything about it.

I have found though that I regain control faster when dragging (as in click-while-moving) the mouse around. I use the 4-finger gesture (multitouch gestures funnily still work) to quickly view my desktop and then drag the mouse around on it until I see the selection box. If I don't do that, I have to wait a long time until I can do something again.

pane2k2

Level 1

0 points

Oct 5, 2015 2:18 AM in response to Consternate

I have found though that I regain control faster when dragging (as in click-while-moving) the mouse around.

I can confirm that. I usually scroll with 2 fingers. But it doesn't allways work.

Btw I did a clean install and didn't use the migrate manager and had the same error there. really seems to be hardware.

Oct 5, 2015 10:28 AM in response to pane2k2

I'm having the same issue unfortunatelly.

Does anyone in this thread use BetterTouchTool? Just tried turning it off yesterday (+ deleting it from Login Items). So far so good.

Also my quick fix was to hold ⌘+⌥+ESC which shows the Force Quit window. Usually takes no more than two seconds to get back to work.

Westcoo

Level 1

0 points

Oct 5, 2015 10:34 AM in response to aleskrejci

Yes, I have BetterTouchTool installed and have done the same as above. The issue still occurred unfortunately. Let me know how you get on though.

Oct 5, 2015 4:37 PM in response to Westcoo

Since I upgraded to 10:11 I happen to me.

IOHIDSystem: postEvent LLEventQueue overflow.

Mac mini with trackpad Apple

I do not think it's a hardware problem

Oct 6, 2015 5:45 AM in response to Nikkiflausch

I replaced the Apple trackpad with an old mouse always Apple

Are several hours that no longer appears this error

I assume that it's the fault of the new software in El Capitan that interfaces with the trackpad to create this error

Mac mini Mid 2011 server

dron_max

Level 1

4 points

Oct 7, 2015 12:25 PM in response to Nikkiflausch

I have the same issue. MacBook Air 2014.
The problem found on the Yosemite, is now updated to Captain and the problem remained. Quick solution - quick click (touch) on the trackpad.
I Tried:
Clean installation, restoration timemahine - the problem persists!

Somebody - help!

Oct 10, 2015 4:19 AM in response to Westcoo

Yeah so removing BetterTouchTool didn't help. 😟

kernel: IOHIDSystem: postEvent LLEventQueue overflow - OS X does not react for a few seconds