Navigating Around the Unsupported OS Issue for the AMD Drivers
On your Kali box, you will want to go to the AMD Driver download page for the RX 480 Cards
Once there you will want to download the UBUNTU Drivers
After the download completes, open a Terminal
Navigate to the directory where you downloaded the drivers and type
tar -xJvf amd(AND THE REST OF THE NAME OF THE FILE)
cd to the amd driver directory
nano amdgpu-pro-install
ctrl +w and search for ubuntu
After the ubuntu | linuxmint | debian text, insert | kali
So the line will look like
ubuntu | linuxmint | debian | kali
Save the file and exit
Type the following to install the drivers, and it should go through now. If you encounter any errors, you may need to repair and reinstall the drivers
./amdgpu-pro-install -y –opencl=legacy