Install amdgpu-pro packages on Debian (openCL, mesa, VCE) only.

install_amdgpu__vce_mesa_opencl.sh

#!/bin/bash

# --------------------------------------------------------------------------------------------------------------------------#
#       !!! WARNING! THIS MAY MAKE YOUR DESKTOP ENVIRONMENT FAIL TO LOAD! USE TIMESHIFT TO CREATE A BACKUP FIRST! !!!       #
#                                                                                                                           #
# 1st: Download the amdgpu-drivers from here: https://www.amd.com/en/support/kb/release-notes/rn-amdgpu-unified-linux-20-40 #
# 2nd: Run this script with elevated privileges (sudo su)                                                                   #
# --------------------------------------------------------------------------------------------------------------------------#

#=============================#
### CONFIG ###
# ADJUST VERSIONS ACCORDINGLY!
PACKAGE="amdgpu-pro"
VERSION="20.40-1147286"
OS="ubuntu-20.04"
### CONFIG ###
#=============================#

if [ ! -f ${PACKAGE}-${VERSION}-${OS}.tar.xz ]
        then
                echo "Download the amdgpu-pro drivers first and adjust config for this script!"
                exit
fi

# prepare packages
tar -xvf ${PACKAGE}-${VERSION}-${OS}.tar.xz
cd ${PACKAGE}-${VERSION}-${OS}
mkdir unpack
dpkg-deb -R opencl-${PACKAGE}_${VERSION}_amd64.deb unpack/
cd unpack/
cd DEBIAN
mv control control.orig
grep -v "Depends: " control.orig > control
cd ..
cd ..
dpkg-deb -b unpack/ opencl-${PACKAGE}_${VERSION}_amd64_nodeps.deb
rm -r unpack/
# install needed deps
apt-get update
apt-get -y install vainfo clinfo libvdpau1
dpkg -i amdgpu-core_*_all.deb
dpkg -i amdgpu-pro-core_*_all.deb
# install openCL
dpkg -i opencl-amdgpu-pro-comgr_*_amd64.deb
dpkg -i opencl-amdgpu-pro-icd_*_amd64.deb
dpkg -i libdrm2-amdgpu_*_amd64.deb
dpkg -i libdrm-amdgpu-common_*_all.deb
dpkg -i libdrm-amdgpu-amdgpu1_*_amd64.deb
dpkg -i opencl-orca-amdgpu-pro-icd_*_amd64.deb
dpkg -i libdrm-amdgpu-radeon1_*_amd64.deb              
# install mesa
dpkg -i libllvm10.0-amdgpu_*_amd64.deb                  
dpkg -i libglapi-amdgpu-mesa_*_amd64.deb
dpkg -i libgles2-amdgpu-mesa_*_amd64.deb
dpkg -i libgles1-amdgpu-mesa_*_amd64.deb
dpkg -i libgl1-amdgpu-mesa-glx_*_amd64.deb
dpkg -i mesa-amdgpu-va-drivers_*_amd64.deb
dpkg -i mesa-amdgpu-vdpau-drivers_*_amd64.deb
# install Vulkan
dpkg -i vulkan-amdgpu-pro_*_amd64.deb
# install VCE
dpkg -i opencl-amdgpu-pro_*_amd64_nodeps.deb
dpkg -i amf-amdgpu-pro_*_amd64.deb
cd ..
rm -r ${PACKAGE}-${VERSION}-${OS}/


# Cleanup and put the open source driver back.
rm -rf /opt/amdgpu/lib/x86_64-linux-gnu/dri.orig        # backup dir for amdgpu-pro driver 
mv /opt/amdgpu/lib/x86_64-linux-gnu/dri /opt/amdgpu/lib/x86_64-linux-gnu/dri.orig
ln -s /usr/lib/x86_64-linux-gnu/dri /opt/amdgpu/lib/x86_64-linux-gnu/dri    # put the O/S amdgpu driver back
apt remove mesa-opencl-icd         #   mesa opencl implementation, causes clashes with LLVM