Install acpi-support by entering the following commands in the terminal:
sudo apt update sudo apt install acpi-support
Description:
scripts for handling many ACPI events
This package contains scripts to react to various ACPI events. It only includes scripts for events that can be supported with some level of safety cross platform. . It is able to: * Detect loss and gain of AC power, lid closure, and the press of a number of specific buttons (on Asus, IBM, Lenovo, Panasonic, Sony and Toshiba laptops). * Suspend, hibernate and resume the computer, with workarounds for hardware that needs it. * On some laptops, set screen brightness.
Version: 0.142
Section: admin