sudo pacman -S acpid
sudo systemctl enable acpid
check ls /sys/class/backlight/ to confirm bl_dev=/sys/class/backlight/intel_backlight/
sudo leafpad /etc/acpi/handlers/bl
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#!/bin/sh
bl_dev=/sys/class/backlight/intel_backlight/
step=1
case $1 in
-) echo $(($(< $bl_dev/brightness) - $step)) >$bl_dev/brightness;;
+) echo $(($(< $bl_dev/brightness) + $step)) >$bl_dev/brightness;;
esac
chmod +x /etc/acpi/handlers/bl
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sudo leafpad /etc/acpi/events/bl_d
event=video/brightnessdown
action=/etc/acpi/handlers/bl -
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sudo leafpad /etc/acpi/events/bl_u
event=video/brightnessup
action=/etc/acpi/handlers/bl +
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sudo systemctl enable acpid
check ls /sys/class/backlight/ to confirm bl_dev=/sys/class/backlight/intel_backlight/
sudo leafpad /etc/acpi/handlers/bl
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#!/bin/sh
bl_dev=/sys/class/backlight/intel_backlight/
step=1
case $1 in
-) echo $(($(< $bl_dev/brightness) - $step)) >$bl_dev/brightness;;
+) echo $(($(< $bl_dev/brightness) + $step)) >$bl_dev/brightness;;
esac
chmod +x /etc/acpi/handlers/bl
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sudo leafpad /etc/acpi/events/bl_d
event=video/brightnessdown
action=/etc/acpi/handlers/bl -
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sudo leafpad /etc/acpi/events/bl_u
event=video/brightnessup
action=/etc/acpi/handlers/bl +
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