After starting the system, this message is displayed on a LENOVO T14s (AMD, 1st. Gen):
$ systemctl --failed UNIT LOAD ACTIVE SUB DESCRIPTION ● systemd-backlight@backlight:acpi_video0.service loaded failed failed Load/Save Screen Backlight Brightness of backlight:acpi_video0
From Arch-Wiki I tried adding
acpi_backlight= into in /etc/default grub:
acpi_backlight=vendor: Brightness always minimum (ref. here),
acpi_backlight=video: Brightness always maximum.
How to get rid of that message?