Enabling Bitlocker on Windows 10 disables built-in keyboard & trackpad at boot
Strange issue this. I installed Boot Camp with Windows 10 on my current model MacBook Pro without issue.
I then read up on BitLocker. I satisfied myself reading https://www.howtogeek.com/howto/6229/how-to-use-bitlocker-on-drives-without-tpm/ and https://tonyho.net/filevault-and-bitlocker-on-a-mac-with-boot-camp/ that I could create a Bitlocker FDE Windows 10 partition and a FileVault FDE MacOS partition on the same drive, and did so. The problems started after this.
When booting into MacOS 10.14 Mojave, the MBP's keyboard and trackpad do not work before MacOS boots [edited for clarity]. This means that I cannot use the built-in keyboard to…
- boot from the Recovery Partition (⌘R)
- select a different boot partition at startup (⌥), and most importantly
- enter the FileVault password if booting MacOS
However if I plug in a USB keyboard and mouse (side note: ALWAYS keep one of those around for events such as these!) both built-in keyboard and trackpad function as expected and the MBP becomes usable.
Secondly, the MacOS Startup Disk preferences pane cannot see the BitLocker encrypted Windows 10 partition, so I can't tell MacOS to reboot into Windows. This wouldn't matter so much if it wasn't for the built-in keyboard and trackpad not working, which means I can't hold down the option ⌥ key to do so either!
Note that Apple's Boot Camp control panel on Windows 10 can see the FileVault encrypted MacOS partition, and I can type in the BitLocker password using the built-in keyboard when booting into Windows 10.
Thoughts?
MacBook Pro with Touch Bar