post_install() {
    printf '%s\n' 'In order to use the the Intel Media Driver for VAAPI you need to set the'
    printf '%s\n' "environment variable 'LIBVA_DRIVER_NAME' to 'iHD'. You can do this, for"
    printf '%s\n' "example, by uncommenting the proper line in '/etc/profile.d/intel-media.sh'."
}

post_upgrade() {
    post_install
}