Comments on: Faulty Trackpad Sensor in PowerBook

By: powerbook

powerbook — Thu, 23 Oct 2008 14:09:39 +0000

without a doubt you’ve got a 1.67GHz PB — either 15″ or 17″) and aren’t prepared to read the 80 or 90 comments on the previous two threads, here’s my recommendation to you:you can find

http://www.all-battery.co.uk/laptop-batteries/dell-inspiron-6000.htm

By: Nicolas Rojas

Nicolas Rojas — Fri, 14 Dec 2007 13:42:22 +0000

so, I removed the sensor….now, everything is working as it should!!!

By: nicorojas

nicorojas — Fri, 07 Dec 2007 19:13:32 +0000

I had this problem six months ago, but after deleting the extension file for the trackpad sensor, it dissapeared. However, I upgraded to Leopard two weeks ago. The problem was back within a week. I again removed the extension file, but the problem returned last night even though no trackpad sensor is listed and temperature monitor shows no sign of overheating. The console log shows the usual: overheating.

Any comments? I really need the help, I’m using the powerbook to record my band this sunday. If I don’t find a solution I’ll have to take drastic measures and rip off the sensor, but I’mj kinf of afraid of doing it.

By: Shawn

Shawn — Sun, 11 Nov 2007 03:20:17 +0000

Hey. I just upgraded my 15″ powerbook with N.A.P to leopard. And I think it may have fixed the problem. Can anyone confirm this? I think apple might have disabled the trackpad sensor in leopard. When you use 3rd party software to get readings on it, it shows up as not available

By: Billyo

Billyo — Wed, 24 Oct 2007 09:36:43 +0000

Can anyone verify that the above works?

I'm at my wits end with my Narcoleptic PB G4 and I don't have the balls to open it up and rip out that chip. Though I might have to.

How much does a topcase replacement cost out of warranty?

By: JP

JP — Mon, 09 Jul 2007 18:42:40 +0000

Do NOT open the computer and detach the sensor. There's no reason to. Here is the complete method for disabling the sensor:

Move (do not delete) the following extensions to a different location (a new folder outside the extensions folder). You'll find them in your system/extensions folder:

* IOI2CControllerPMU.kext

* IOI2CLM7x.kext

* AppleLM7x.kext

* Extensions.kextcache

* Extensions.mkext

Once moved, restart, and that little sensor will be disabled.

By: Yo

Yo — Sat, 30 Jun 2007 00:48:20 +0000

No, it won’t work. I’m talking to the guy above.

Removing the faulty sensor inside under the trackpad is the only and the fastest cure which will not mess up your computer if you do it right.

By: Benoit

Benoit — Wed, 06 Jun 2007 10:32:30 +0000

Instead of replacing hardware, an other good solution is to disable the trackpad temperature sensor logicaly. That works well!

With an administrator user, open a Terminal and type :

$ sudo mv System/Library/Extensions/IOI2CLM7x.kext System/Library/Extensions/IOI2CLM7x.kext.DISABLED

And then reboot your Mac.

I found this solution on this forum : http://www.macfixitforums.com/printthread.php?Cat=&Board=Forum35&main=731197&type=thread

By: Blankenship

Blankenship — Sat, 28 Apr 2007 02:06:02 +0000

After trying every software fix I could find (deleting all those .kext files, etc.) and it still nodding off, I finally opened it up and ripped out the little offending sensor. Well worth the trouble! It’s finally working fine for the first time in a month. Rip that thing out! Hang it above the mantle next to the deer heads! I’m finally happy again.

By: Rick Cameron

Rick Cameron — Mon, 30 Oct 2006 00:48:09 +0000

WOW! I had a feeling that something like this must be possible. Awesome that you had the courage to rip out wires on the sensor. Even better that it works! The photos are great but can you tell us which wire you ripped out exactly? Do you have a macro image of the “final cut”? Ready to try this myself but heart in mouth and would appreciate some more info.