systemd-backlight@ (8) - Linux Manuals

systemd-backlight@: Load and save the display backlight brightness at boot and shutdown

Command to display systemd-backlight@ manual in Linux: $ man 8 systemd-backlight@

NAME

systemd-backlight [at] .service, systemd-backlight - Load and save the display backlight brightness at boot and shutdown

SYNOPSIS

systemd-backlight [at] .service

/usr/lib/systemd/systemd-backlight

DESCRIPTION

systemd-backlight [at] .service is a service that restores the display backlight brightness at early boot and saves it at shutdown. On disk, the backlight brightness is stored in /var/lib/systemd/backlight/.

KERNEL COMMAND LINE

systemd-backlight understands the following kernel command line parameter:

systemd.restore_state=

: Takes a boolean argument. Defaults to "1". If "0", does not restore the backlight settings on boot. However, settings will still be stored on shutdown.