brightnessctl:tldr:c9c9d
brightnessctl: List devices with changeable brightness.
$ brightnessctl --list
try on your machine
The command "brightnessctl --list" is used to list the available brightness controls that can be managed on a system.
When executed, the "brightnessctl" command is a tool that allows you to control the display brightness of your system. The "--list" option is used to list all the brightness controls available on your system. This can include various sources of brightness control such as the display backlight, keyboard backlight, or external monitors.
By running "brightnessctl --list", you can see a list of all the available controls, along with their IDs and current brightness values. This information helps you identify which controls you can manage and adjust their brightness levels accordingly.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.