mastertn

Thank you @Jake Lo and @Chicken07

 

Now trackpad is working with your help.

 

Changed my config based on your EFI and all is OK. 

 

Tap to Click : OK

Two finger Scroll : OK

 

My next steps try to find solution for multi finger gestures.

 

 

Thanks @Chicken07 i will try it.

 

Hello,

 

Is it possible to send your EFI folder ?

 

Thx

The same problem.

 

Here my IOReg.

 

Thanks

mastertn_ioreg_7480.zip

Hi,

 

I tryed to change KEXT / SSDT / PATCH and no luck.

 

Every think work except trackpad.

 

Here my EFI folder.

 

DELL_7480_EFI.zip

Hello,

 

Dell 7480 i7

ALPS Trackpad : (VoodooPS2Controller  & VoodooI2C)

- Working on Catalina with Clover

- Not Working on Big Sur OC 0.6.3

 

Tested many solution some times get : appleintellpssi2ccontroller ftimerservicematching timed out

 

I Have to disable VoodooI2C//VoodooInput, conflict with VoodooPS2Controller//VoodooInput

 

PLZ Help

Thanks.