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Vostro 2520: ALPS touchpad tuning + slow performance


Taskmaste

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Holy Moly, that's a lot of kexts.

Probably most are not needed, and some are duplicate doing the same thing.

Launch this DPCIManager https://sourceforge.net/projects/dpcimanager/

Post screenshot of Status and PCI List

also launch this and save file

IOReg IORegistryExplorer_v2.1.zip

 

Post them here.

​Did you patch your own DSDT?

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Go into /System/Library/Extensions and remove

NullCPUPowermanagement.kext

ApplePS2Controller.kext

ApplePS2Keyboard.kext

AppleACPIPS2Nub.kext

 

Restore these original kext from 10.12.6 to /S/L/E

AppleIntelHD3000Graphics.kext

AppleIntelSNBGraphicsFB.kext

AppleIntelCPUPowermanagement.kext

 

Repair permission and rebuild cache

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I did this and things are still kinda freezing up too much. On a second note, I installed it on another drive partition and it looks to be doing better and not freezing. So I'm just gonna migrate my applications and report back to if everything goes to shit or not.

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