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#!/bin/sh
if ! type ddcutil 1>/dev/null 2>&1; then
notify-send "ddcutil is not installed" "Install it with your system package manager"
exit 1
fi
# On Intel GPUs sometimes it won't recognise all monitors
available_monitors="$(ddcutil detect | grep Display | awk '{ print $2 }')"
selected_monitors="$(printf "All\n%s" "$available_monitors" | dmenu -i -p "Monitor")"
if [ "$selected_monitors" = "All" ]; then
selected_monitors="$available_monitors"
elif [ "$selected_monitors" = "" ]; then
exit
fi
brightness="$(dmenu -i -p "Brightness" </dev/null)"
[ -z "$brightness" ] && exit 1
for monitor in $selected_monitors; do
ddcutil setvcp 10 "$brightness" --display "$monitor" &
# Improves reliability on Intel GPUs as sometimes monitors don't get recognised and above command fails
# sh -c "sleep 3 && ddcutil setvcp 10 $brightness --display $monitor &" &
# Improves reliability on Intel iGPUs and prevents AMD GPUs from crashing
sleep 1
done
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