Keyboard and touchpad after restart from windows to macOS not working

EdvinsK wrote:

It seems that disabling FileVault fixes the problem. Is it possible to get explanation why is it acting so?

You have the 2018 MBP which has the new T2 chipset. As a test, enable FileVault, but lower the security setting mentioned in About Secure Boot - Apple Support and test.

See Mac computers that have the Apple T2 chip - Apple Support . The drivers that control the peripherals (keyboard and mouse) are no being loaded, till you log in successfully. Do you have any pending software updates on your Mac?

Can you check if Windows Fast Start is enabled?

Actually it is the built-in keyboard and touchpad that would not work when switching from Boot Camp OS into macOS. Ironically the solution is to attach an external keyboard in order to type in the password and get to the main desk, and the internal keyboard and touchpad would be responsive again.

Thanks for your reply.

Leave the external Keyboard/Mouse connected, switch to macOS, and post the output of About This Mac -> System Report. Remove any personal information and serial numbers as you see fit. UUIDs do not need to be removed.

For test/debugging, do you have access to an external USB Keyboard/Mouse?

As a test, can you create a new account and test if the internal devices behave the same way for when you switch? Instead of the full System Report, we should look for any USB connections for your internal Keyboard/Trackpad. Do you have FileVault enabled?

I’m experiencing the exact same problem. I have a 2018 MacBook Pro 15” with FileVault enabled, and a new boot camp partition with windows 10 Pro installed. Whenever I “soft” restart to switch from Windows into MacOS the keyboard and touchpad are frozen on the main MacOS login screen.

This question is marked "Solved". Disabling FileVault on machines with T2 chip cannot the solution, can it? I thought one of the main reasons to have this T2 is to improve the security and performance of FileVault??

Are you using an internal keyboard/trackpad or an external set?

jmyching wrote:

This question is marked "Solved". Disabling FileVault on machines with T2 chip cannot the solution, can it?

It is, because there is a bug that does not allow external peripherals to connect since the FV on T2 does not allow the Apple BT KEXTs to be loaded, even if you are not yet logged in. If you logged out of your Mac, should you BT devices stop working? In case of a 'cold' start, with FV2 enabled, BT works, so why does it not work properly after a 'warm' restart?

Apple needs to fix it.

jmyching wrote:

I thought one of the main reasons to have this T2 is to improve the security and performance of FileVault??

No. T2 adds a lot more functions, than just improved support for FV2. See Mac computers that have the Apple T2 chip - Apple Support .