How to Switch from adafruit lcd to HMDI tv?

Hey folks,

I installed my adafruit 3.5" touchscreen using this link from adafruit : https://learn.adafruit.com/kali-linu...s-kernel-build
Everything works fine but there is a huge problem : when i connect the hmdi cable to my monitor nothing shows up. i've contacted adafruit and they told me to use this link to solve the problem (https://learn.adafruit.com/running-o...ys/pitft-setup)
but the admin then said he had no idea if "fbcp" works with kali. So he told me to come here and ask for your help.

Thanks in advance!