Trackpad is sometimes not working on MBP after OS X 10.8.2 upgrade

I spent some time at a Genius Bar yesterday. The tech told me that I was the fourth person she'd seen over the past few days with the same problem. She told me to sit tight because its a software problem and that Apple would be issuing a fix soon.

Same problem: keyboard/trackpad freeze after idling for 4 seconds, and it takes 4 seconds for them to become responsive again after touching the trackpad or keyboard.

The problem is resolved (at least temporarily!), but I don't know what actually fixed it. Here's what I did:

Some of you talked about deleting the contents of some Library folders, so I started by locating

/Library/LaunchAgents

/Library/LaunchDaemons

I renamed the first folder and rebooted but it didn't help, so I changed the name back. Then I renamed the second folder, rebooted, and the cursor/trackpad were normal! So I created a new folder named LaunchDaemons and added the four files back one by one, rebooting after each addition. But after replacing all four files, the cursor is still normal. What the ding is going on?

These are the files in LaunchDaemons:

com.adobe.fpsaud.plist

com.flipvideo.FlipShareServer.launchd.plist

com.google.keystone.daemon.plist

com.thinkecoinc.daemon.plist

Since I added the original files back, they were not re-created. I checked, and all the files have the original creation dates.

Mystery...

I had the same files in LaunchDaemons:

com.adobe.fpsaud.plist

com.thinkecoinc.daemon.plist

I removed them from the folder and, at least for the time being, by computer is functioning normally.

I don't think you need to go through all the steps that you've mentioned, Rockerium. I tried to go through steps others mentioned with no results because I didn't have those files on my computer. It wasn't until I saw that I had two files that matched those that Charleseub mentioned and got rid of them that my problem was fixed. I've shut down and restarted a number of times and my trackpad and keyboard have been operating properly ever since.

removing the /Library/LaunchAgents/com.google* and /Library/LauchDaemons/com.google* files din't work for me.

I downloaded and reinstalled the Mountain Lion full and supplemental updates and it seems to behave a little better, but still not perfect. Two-finger tap to get right-click and trying to move windows is still very unreliable.

But pointer movement has improved.

I tried (temporarily) creating a new user. Logging in as the new user I had no freeze up issues. It seems that my user account was somehow corrupted during the 10.8.2. update. This lead me to try a safe maode boot and reinstall of ML (only). I booted into safe mode and selected reinstall OS. This option re-downloads the entire ML (and NOT the update or the combo update) and does an OS reinstall without affecting data and there is no need to do a restore from back up. This took several hours to complete even with a 25 MBPS internet connecton. The install process also took a few hours to complete. However, in my case it was worth it. This worked for me and has solved my issue. I have since reinstalled Chrome which was suspected as a cause and I have had no issues after the reinstall.

My MBP is no longer freezing, no keyboard drop out and no trackpad issues. I can't prove it but after my original instal of ML my system was screaming fast (MBP 15, Core i7 w 8 GB). It is performing acceptably now but still seemed faster after the initial ML version vs. 10.8.2.

May be worth a try. My system was bascally unusable before the OS reinstall. Continuously froze and had to power button restart 20+ times in an hour. This has been resolved!

Booted in "Safe Mode" once.

Restarted in normal mode - problem disappeared totally. No more freezing since!

(10.8.2 - no reinstalling of ML needed)

GFIs1

Same issue on my MBP 2011 with Moutain Lion 10.8.2 😢

All possible fix listed in this topic do not work for me :

- All files listed above removed

- Boot in safe mode

- Repair permission

- ...

Really confused, I hope Apple will fix this issue soon !

I have the exact same problem with a late 2008 aluminum macbook and OS X 10.6.8

So I don't think it is an issue with 10.8.2 upgrade. (Maybe trackpad software update?)

I don't know how I fix it everytime it is unrensponsive. It looks like different things work; resetting w/ power button, putting macbook to rest overnight. (Even though I resetted pram each time, it didn't work afterwards)

Anyone was able to fix it?

same issue here, any word from apple when this will be fixed?

Hi

same error here, MBP mid 2010

kl

Had the same on my MacBook Air late 2012. Fix was to remove Telldus SW from the system.

Same problem for me. No solution working, still. Reinstalled MacOS, no way. Deleted Google stuff, nothing.

Right now the problem seems to be self solved.

Wrong. Still awful.