[solved] Archlinux acpi_video0 backlight can't found

本文亲测在manjaro下同样管用。

sudo vim /etc/default/grub

在GRUB_CMDLINE_LINUX_DEFAULT:’xxxxxxxxxxxx’x的后面加上

acpi_backlight=vendor
acpi_baclight=video
acpi_backlight=none
acpi_backlight=native

重启电脑即可。