33 lines
619 B
Plaintext
33 lines
619 B
Plaintext
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#!/bin/sh
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BR_DIR="/sys/class/backlight/intel_backlight/"
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test -d "$BR_DIR" || exit 0
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MIN=0
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MAX=$(cat "$BR_DIR/max_brightness")
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VAL=$(cat "$BR_DIR/brightness")
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if [ "$1" = down ]; then
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VAL=$((VAL-4096))
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else
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VAL=$((VAL+4096))
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fi
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if [ "$VAL" -lt $MIN ]; then
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VAL=$MIN
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elif [ "$VAL" -gt $MAX ]; then
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VAL=$MAX
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fi
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PERCENT=`echo "$VAL / $MAX" | bc -l`
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export XAUTHORITY=$HOME/.Xauthority # CHANGE "ivo" TO YOUR USER
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export DISPLAY=:0
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echo "xrandr --output eDP-1 --brightness $PERCENT" > /tmp/oled-brightness.log
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xrandr --output eDP-1 --brightness $PERCENT
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echo $VAL | sudo tee "$BR_DIR/brightness"
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