DisplayLink not working when FileVault is enabled

[zumbir]

Hi Carlos

Here are the logs from another Mac Mini that I have which is running El Capitan 10.11.2. It has the same issue when FileVault is enabled as the other Mac Mini that I have which is running Yosemite 10.10.5. Both external displays are blank and there is no way to log in. I then have to connect one display directly to the Mac Mini and then restart to see the login screen and then log in. As soon as I log in the second display is then detected. I can then unplug the display connected directly to the Mac Mini and connect it via the DisplayLink StarTech hub. I've also noticed a network issue with the Mac Mini after enabling FileVault where the Mac Mini cannot detect the USB Ethernet connection on the StarTech hub. This then causes the attached issue where you get asked to reset your password.

I'm using the DisplayLink 2.5 driver. Just out of interest. What are you using to test the issue? Is it a MacBook? If you are then you'll be able to circumnavigate the issue as you'll see the login screen on the screen of the MacBook. Once you log in the external monitors are then detected. You'd need to test the issue using a Mac Mini.