Dell G5 15 - Fan Control Ubuntu

setup-fan-control.sh

#!/usr/bin/env bash

set -euo pipefail

function main() {
    must_root
    sudo apt install i8kutils
    sudo snap install dell-bios-fan-control
    sudo snap connect dell-bios-fan-control:io-ports-control
}

function must_root() {
    if [[ $EUID -ne 0 ]]; then
        echo "This script must be run as root."
        exit 1
    fi
}

main $@

start-fans.sh

#!/usr/bin/env bash

set -euo pipefail

function main() {
    if [[ $# -eq 0 ]] || [[ $# -eq 1 ]]; then
        echo "Not all mandatory options are supplied, please supply an option for both fans."
        print_options
        exit 1
    fi

    must_root
    modprobe i8k force=1
    dell-bios-fan-control 0

    echo "Options selected: fan 1 = "$1", fan 2 = "$2"."
    check_option $1
    check_option $2

    echo "Previous options selected:"
    i8kctl fan $1 $2
}

function must_root() {
    if [[ $EUID -ne 0 ]]; then
        echo "This script must be run as root."
        exit 1
    fi
}

function check_option() {
    if [[ "$1" = "0" ]] || [[ "$1" = "1" ]] || [[ "$1" = "2" ]] || [[ "$1" = "-" ]]; then
	echo "Option "$1" is valid."
    else
        echo "Option "$1" is invalid."
        print_options
        exit 1
    fi
}

function print_options() {
    echo "Please select from the following options:"
    echo "0  turn the fan off"
    echo "1  set low speed"
    echo "2  set high speed"
    echo "-  don't change the state of this fan"
}

main $@