NAME¶

blight - Hassle-free CLI backlight utility for Linux

SYNOPSIS¶

blight [options] command [value]

This manual page documents the blight program.

blight is a hassle-free CLI utility to manage backlight on Linux; one that plays well with hybrid GPU configuration and proprietary drivers.

-s, --sweep: Lets you increase brightness gradually, resulting in a smooth change. Can only be used with the inc and dec commands.
-d, --device <name>: Lets you specify a backlight device target other than the default one. Can only be used with the inc, dec, set, save and status commands.

inc <value> [-s | --sweep] [-d | --device <name>]: Increase brightness by the given value.
dec <value> [-s | --sweep] [-d | --device <name>]: Decrease brightness by the given value.
set <value> [-d | --device <name>]: Set brightness to the given value.
save [-d | --device <name>]: Save current brightness value to restore later.
restore: Restore saved brightness value.
setup: Install udev rules and add user to video group (run with sudo).
status [-d | --device <name>]: Show backlight device status.
list: List all backlight devices.
help: Display help.