Since upgrading my Hackintosh to Yosemite, I’ve noticed a few instances where my Apple Trackpad becomes unusable; it will show as connected but the cursor will not move or move erratically and multi-touch gestures will not work. I am using the IOGEAR 4.0 Bluetooth dongle as recommend by tonymacx86. This usually only happens when I do a Time Machine restore (after failed attempts to optimize kexts or settings) but it happened today while tinkering with CPU power management.

I haven’t been able to find any useful information related to this but through trial and error I’ve found an odd solution.

1. Remove all paired devices under System Preferences > Bluetooth
2. Shutdown the Hackintosh
3. Remove the USB dongle
4. Power on the Hackintosh and shut it down again after it finishes loading
5. Reconnect the USB dongle and power on the Hackintosh
6. Repair your devices

While using my Hackintosh today, I noticed that I only ever have the minimum frequency (800mhz, 8x100bclk) and the maximum non-turbo frequency (2.8Ghz, 28x100bclk) for my Intel i5-4440S. I was using iStat Menus to check this info and based on this, I spent a great deal of time trying to figure out how to make it work properly. I only learned much later that most utilities only report the min and max frequency and nothing in between.

Initially I tried changing the smbios to iMac 14,1 since that is closer to my system than the MacMini 6,2 definition; the iMac is Haswell and the MacMini is Ivy Bridge. Eventually I stumbled onto http://www.tonymacx86.com/mavericks-desktop-support/128926-mavericks-native-cpu-igpu-power-management.html – a complete guide to enable proper CPU power management and well as the correct utilities to check with.

I downloaded the ssdtPRGen.sh script to generate an SSDT file to enable the proper CPU power management:

This generated the following output:

You can see in the output above that it correctly detected and generated the missing P states in-between the min and max frequencies as well as the turbo frequencies.

Since I originally used the Multibeast option “Patched AppleIntelCPUPowerManagement”, I restored the original AppleIntelCPUPowerManagement.kext from my Unibeast installer.  Then I used Chameleon Wizard to disable the “Generate P-States” and “Generate C-States” options and enable “Drop SSDT” so the ssdt.aml generated earlier is loaded by the bootloader (ssdt.aml needs to be copied to your /Extra folder, which ssdtPRGen.sh will do for you).

The Intel Power Gadget and AppleIntelCPUManagementInfo.kext can be used to verify whether or not power management has been correctly enabled. Below you can see the outputs from my system:

I’ve successfully upgraded my Hackintosh to OS X 10.10 and everything works the same as before. The process was basically the same as my original Mavericks install. All you need is to create the Unibeast USB installer by following http://www.tonymacx86.com/445-unibeast-install-os-x-yosemite-any-supported-intel-based-pc.html. It is important to note that the new Yosemite based installer seems to have removed the option “Restore System from Backup”; so you will to keep your older Mavericks based Unibeast USB for doing full Time Machine restores.

Initially I had trouble with FakeSMC and audio not working; turns out this was because I forgot to check the new option in Multibeast for “Kext Dev Mode”. After reinstalling with that option enabled, sensor monitoring and audio was working.