Fixing a MacBook's keyboard and trackpad driver in MacOS

I have a MacBook Pro from 2015. The keyboard and trackpad are not working under MacOS but when I boot from a bootable USB drive with Ubuntu 16.04 and select "try ubuntu", the keyboard and trackpad do work.

Of course, when booting I need to use an external keyboard in order to choose the USB drive as the boot device.

I already tried:

Creating a new user account and testing the keyboard there.
Resetting the PRAM and SMC
Booting in safe mode

Because the keyboard and trackpad work under Ubuntu, I think there is a problem with the drivers of the trackpad and/or the keyboard.

I would like to avoid resetting the whole system. Does somebody have an idea how to fix my problem?

lucasahli

Posted 2018-08-05T11:35:04.520

Reputation: 1

Answers

First step would be to try reinstalling macOS from Recovery - this will not change your app or data structure, just 'fix' the OS itself.

Hold Cmd ⌘ R at boot [using your working keyboard, of course]

Tetsujin

Posted 2018-08-05T11:35:04.520

Reputation: 22 456

I tried what you proposed but it did not fix the keyboard or trackpad. What else could I try? – lucasahli – 2018-08-25T15:10:39.490

Make a new Admin account & test under that. – Tetsujin – 2018-08-25T15:23:40.517

It did not help to create the administrator account. Because the mouse and keyboard are not working on the login screen. – lucasahli – 2018-08-25T17:30:13.227