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Update: Changed scripts, added wayland support for screenshots, added ability to control external monitors via ddcutil.

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Keyitdev
2026-06-02 19:06:39 +02:00
parent 545e54af53
commit ad19130ded
5 changed files with 224 additions and 151 deletions
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usr/local/bin/brightness_control
+21 -13
View File
@@ -4,8 +4,6 @@
step=+5
video_card=$(ls -1 /sys/class/backlight/)
cur_brightness=$(cat /sys/class/backlight/"$video_card"/brightness)
max_brightness=$(cat /sys/class/backlight/"$video_card"/max_brightness)
while getopts s: flag
do
@@ -13,18 +11,28 @@ do
s) step=${OPTARG};;
*) echo "Usage: -s <-value/+value>";;
esac
done
step=$(echo "$step" | sed 's/+//g')
step_c=$(( (step*max_brightness)/100 ))
# step_c=$(echo "scale=2; $step*($max_brightness/100)" | bc -l | sed 's/\..*$//')
new_brightness=$((cur_brightness + step_c))
if [ -n "$video_card" ] && [ -d "/sys/class/backlight/$video_card" ]; then
step=$(echo "$step" | sed 's/+//g')
cur_brightness=$(cat /sys/class/backlight/"$video_card"/brightness)
max_brightness=$(cat /sys/class/backlight/"$video_card"/max_brightness)
step_c=$(( (step*max_brightness)/100 ))
# step_c=$(echo "scale=2; $step*($max_brightness/100)" | bc -l | sed 's/\..*$//')
new_brightness=$((cur_brightness + step_c))
if [ "$new_brightness" -le "0" ]; then
echo "0" > /sys/class/backlight/"$video_card"/brightness
elif [ "$new_brightness" -ge "$max_brightness" ] ; then
echo "$max_brightness" > /sys/class/backlight/"$video_card"/brightness
else
echo "$new_brightness" > /sys/class/backlight/"$video_card"/brightness
fi
if [ "$new_brightness" -le "0" ]; then
echo "0" > /sys/class/backlight/"$video_card"/brightness
elif [ "$new_brightness" -ge "$max_brightness" ] ; then
echo "$max_brightness" > /sys/class/backlight/"$video_card"/brightness
else
echo "$new_brightness" > /sys/class/backlight/"$video_card"/brightness
fi
sign=$(printf "%s" "$step" | cut -c1)
value=$(printf "%s" "$step" | sed 's/^[-+]//')
ddcutil --disable-dynamic-sleep --noverify --skip-ddc-checks --sleep-multiplier 0.1 --bus 12 setvcp 10 "$sign" "$value"
fi