Hi, I am a new Linux user. It took some work getting video working. After latest Zorin update this week video is not working anymore on my macbook. I tried a reinstall for the facetimehd module.
sudo git clone https://github.com/patjak/facetimehd-firmware
sudo make install
sudo modprobe -r bdc_pci
sudo modprobe facetimehd
modprobe: FATAL: Module facetimehd not found in directory /lib/modules/5.4.0-60-generic
In /lib/modules/5.4.0-58-generic I found additional /extra/facetimehd.ko and tried to copy this to /lib/modules/5.4.0-60-generic, but with no luck.