Install acpi by entering the following commands in the terminal:
sudo apt update sudo apt install acpi
Description:
displays information on ACPI devices
Attempts to replicate the functionality of the 'old' apm command on ACPI systems, including battery and thermal information. Does not support ACPI suspending, only displays information about ACPI devices.
Homepage: http://sourceforge.net/projects/acpiclient
Version: 1.7-1.1
Section: universe/utils