Able to restore four finger trackpad gestures on Rev A after 10.5.8 update?

dborja · Aug 6, 2009

I've lost the four finger trackpad gestures after the update, as expected. So, I checked the Extensions directory and found the AppleUSBMultitouch.kext file is still the "hacked" one. I still went through the move-copy-reboot (after Permissions Repair) procedure in earlier threads, in case the file simply got corrupted. However, it's still not working.

Anybody with a Rev A experience this and, if so, found a fix?

TIA

lixuelai · Aug 6, 2009

Works fine for me. Got KEXT again, replaced, fixed permission, reboot, voila.

dborja · Aug 6, 2009

Strange... I had to rerun fix disk permissions twice and both times it complained about the same permission problems. After the second reboot, I got my four-finger track gesture back...

jamshah · Aug 6, 2009

Works

I replaced the same old kext replacement that I saved and forgot to repair permissions. Rebooted and trackpad + keyboard wouldnt work. Rebooted in safe mode, which apparently repairs permissions, and now all gestures work fine.... Rev. A of course.

dborja · Aug 6, 2009

All working now. Thanks for confirming that the old "hack" still works. It made me stick with the procedure until I got it working again.

slapguts · Aug 7, 2009

Sweet, the old hack worked perfectly for me, as well.

Don't forget to repair permissions before restarting. Otherwise you'll lose your keyboard and trackpad. Glad I had a Jaadu VNC on the iPhone.

h1d · Aug 7, 2009

For those who want to repair permission quicker, which completes in 0.1 second.

Code:

cd /System/Library/Extensions/AppleUSBMultitouch.kext
sudo chown root:wheel .
sudo find . -type d -exec chmod 755 {} \;
sudo find . -type f -exec chmod 644 {} \;
sudo find . -name AppleUSBMultitouch -exec chmod 755 {} \;
sudo find . -name MultitouchHID -exec chmod 755 {} \;

Type this in terminal. (Type your own pass once when asked.)

mrkgoo · Aug 7, 2009

For the record, the version number the AppleUSBMultitouch.kext was:

v189.29.1 (10.5.6)
v189.32 (10.5.7)
v189.35 (10.5.7)

I tend to just edit the kext myself - it's just adding six lines of text, but you have to be aware that the kext itself it stored in a cache (Extensions.mkext), so often a couple of reboots and invokes of the cache are required.

dborja · Aug 7, 2009

mrkgoo said:
For the record, the version number the AppleUSBMultitouch.kext was:

v189.29.1 (10.5.6)
v189.32 (10.5.7)
v189.35 (10.5.7)

I tend to just edit the kext myself - it's just adding six lines of text, but you have to be aware that the kext itself it stored in a cache (Extensions.mkext), so often a couple of reboots and invokes of the cache are required.

Aha! That was probably my problem. It took three reboots to re-activate the four-finger trackpad gesture for my MBA...

stoconnell · Aug 7, 2009

dborja said:
Aha! That was probably my problem. It took three reboots to re-activate the four-finger trackpad gesture for my MBA...

This got me wondering, and in the man page for kextcache, I found this little gem, which might solve this problem for future updates:

NOTE: Kernel extension installers should not use this program to update caches. Instead they should merely touch(1) the /System/Library/Extensions directory after they have finished, which will cause the system to update all necessary kernel extension caches.

dborja · Aug 7, 2009

stoconnell said:
This got me wondering, and in the man page for kextcache, I found this little gem, which might solve this problem for future updates:

NOTE: Kernel extension installers should not use this program to update caches. Instead they should merely touch(1) the /System/Library/Extensions directory after they have finished, which will cause the system to update all necessary kernel extension caches.

Nice find! Thanks! I'll try to remember that next time

mrkgoo · Aug 7, 2009

dborja said:
Nice find! Thanks! I'll try to remember that next time

You can watch it happen. Right underneath Extensions.mkext (which I believe to be the first cache file), a temp file will be created before replacing the .mkext.

advaadva · Mar 14, 2010

My keyboard and my trackpad both are not working. I tried to replace the hacked file with the 'real' AppleUSBMultitoch.kext and still- my keyboard and my trackpad are dead.

So, I think I need the hacked file that you have (please post here the link) and than I'll do reboot in safe mode(how am I doing this??)
THANKS

stoconnell · Mar 14, 2010

advaadva said:
My keyboard and my trackpad both are not working. I tried to replace the hacked file with the 'real' AppleUSBMultitoch.kext and still- my keyboard and my trackpad are dead.

So, I think I need the hacked file that you have (please post here the link) and than I'll do reboot in safe mode(how am I doing this??)
THANKS

It's possible that it's a hardware problem; however, do the keyboard and trackpad work as the computer is booting? If they do, then maybe you should look into resetting the SMC:

SMC -- http://support.apple.com/kb/HT1411

and possibly the PRAM

PRAM and NVRAM == http://support.apple.com/kb/HT1379

To boot into single user mode, you need to hold down the Command and S keys as the machine boots.

advaadva · Mar 14, 2010

stoconnell said:
It's possible that it's a hardware problem; however, do the keyboard and trackpad work as the computer is booting? If they do, then maybe you should look into resetting the SMC:

SMC -- http://support.apple.com/kb/HT1411

and possibly the PRAM

PRAM and NVRAM == http://support.apple.com/kb/HT1379

To boot into single user mode, you need to hold down the Command and S keys as the machine boots.

on safe mode both working, and also while rebooting..
the problem caused while trying to re-active the four fingers multi-touch feature after an update to 10.5.8, both my keyboard and my trackpad are not working. I tried to replace the AppleUSBMultitoch.kext but still- I have an alert that this file is not installed correctly (every time I turn on the macbook pro)
I think that all this happen because my "repair permissions" doesn't work correctly- it's always repair the same things, and the AppleUSBMultitouch.kext is not on that list!

How can I make my disk utility repair things?!
Someone know what I need to do in order to repair the keyboard & trackpad?
All the SMC rebooting is related?

stoconnell · Mar 14, 2010

advaadva said:
How can I make my disk utility repair things?!
Someone know what I need to do in order to repair the keyboard & trackpad?
All the SMC rebooting is related?

If you have an external keyboard/mouse, you can use disk utility to repair the packages; however, if you don't, you can try booting into safe mode, mounting the file system and running:

repair_packages --repair --standard-pkgs

advaadva · Mar 14, 2010

stoconnell said:
If you have an external keyboard/mouse, you can use disk utility to repair the packages; however, if you don't, you can try booting into safe mode, mounting the file system and running:

repair_packages --repair --standard-pkgs

I'm now in safe mode but a regular repairing permissions still repair the same things!
and I did not understand what should I do with the "repair_packages --repair --standard-pkgs"

Should I run it on terminal?

stoconnell · Mar 14, 2010

advaadva said:
I'm now in safe mode but a regular repairing permissions still repair the same things!
and I did not understand what should I do with the "repair_packages --repair --standard-pkgs"

Should I run it on terminal?

Sorry, yes...

/usr/libexec/repair_packages --repair --standard-pkgs

This can also be accesses via pkgutil command using the --repair.

Poking around on my system, AppleUSBMultitouch.kext is part of 3 pkgs

pkgutil --file-info /System/Library/Extensions/AppleUSBMultitouch.kext
volume: /
path: System/Library/Extensions/AppleUSBMultitouch.kext

pkgid: com.apple.pkg.BaseSystem
pkg-version: 10.5.3.1.1.1188305148
install-time: 1233381189
uid: 0
gid: 0
mode: 40755

pkgid: com.apple.pkg.update.os.10.5.7
pkg-version: 1.0.1.1191932192
install-time: 1242176533
uid: 0
gid: 0
mode: 40755

pkgid: com.apple.pkg.update.os.10.5.8
pkg-version: 1.0.1.1191932192
install-time: 1249516851
uid: 0
gid: 0
mode: 40755

So, you can run the following from the terminal..

pkgutil --repair com.apple.pkg.BaseSystem

advaadva · Mar 14, 2010

stoconnell said:
Sorry, yes...

This can also be accesses via pkgutil command using the --repair.

Poking around on my system, AppleUSBMultitouch.kext is part of 3 pkgs

pkgutil --file-info /System/Library/Extensions/AppleUSBMultitouch.kext
volume: /
path: System/Library/Extensions/AppleUSBMultitouch.kext

pkgid: com.apple.pkg.BaseSystem
pkg-version: 10.5.3.1.1.1188305148
install-time: 1233381189
uid: 0
gid: 0
mode: 40755

pkgid: com.apple.pkg.update.os.10.5.7
pkg-version: 1.0.1.1191932192
install-time: 1242176533
uid: 0
gid: 0
mode: 40755

pkgid: com.apple.pkg.update.os.10.5.8
pkg-version: 1.0.1.1191932192
install-time: 1249516851
uid: 0
gid: 0
mode: 40755

So, you can run the following from the terminal..

pkgutil --repair com.apple.pkg.BaseSystem

I don't know what all of this pkg that you wrote.. but I did run "pkgutil --repair com.apple.pkg.BaseSystem" in the terminal and it did a lot of things.. also errors and missing things.
:\

stoconnell · Mar 14, 2010

advaadva said:
I don't know what all of this pkg that you wrote.. but I did run "pkgutil --repair com.apple.pkg.BaseSystem" in the terminal and it did a lot of things.. also errors and missing things.
:\

Did it help after rebooting?

advaadva · Mar 14, 2010

Nope.

stoconnell · Mar 14, 2010

advaadva said:
Nope.

Bummer. If you move the original back into place, does the keyboard and trackpad at least function w/o gestures.

advaadva · Mar 15, 2010

stoconnell said:
Bummer. If you move the original back into place, does the keyboard and trackpad at least function w/o gestures.

I don't have the original for MBP

advaadva · Mar 15, 2010

Thanks for helping me! I finally got it right! (after 2 times of Combo update and a lot of terminal things..)

THANK YOU!!

Able to restore four finger trackpad gestures on Rev A after 10.5.8 update?

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