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This fix works for 10.4.3 and 10.4.5.

Both systems provide support for ALPS Glide Point and Synaptics Touchpad.

 

First go into windows and look for your PNP ID:

 

Start->Accessory->System Info

click on input device and find your PS2 mouse (that's your Glide Point)

Mine looks like this: PNP Device ID ACPI\PNP0F13\4&15F2F7D1&0

The important number is 0F13 following PNP

 

 

File to patch: /System/Library/Extensions/ApplePS2Controller.kext/Contents/PlugIns/ApplePS2Trackpad.kext/Contents/Info.plist

 

Look for

 

<key>IOProbeScore</key>

<integer>1000</integer>

 

and replace "1000" with your PNP ID (in my case this is 0f13)

 

reboot and voila, u have tapping.

  • 1 month later...

I tried the above and, while tapping did work in safe mode, the boot process would hang if I booted in normal mode. After doing the below, I got it to work in normal mode as well:

 

cd /System/Library/Extension/ApplePS2Controller.kext/Contents/PlugIns/ApplePS2Trackpad.kext

kextload ApplePS2Trackpad.kext

rm /System/Library/Extensions.kextcache

kextcache -k /System/Library/Extensions

 

Then I rebooted and it worked!

 

I hope that this helps someone.

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