Using acpi_listen to monitor ACPI events

Using acpi_listen to monitor ACPI events

If ACPI is running on your system, you can monitor ACPI events using the acpi_listen command. As root user, type the following from a Terminal window:

# acpi_listen
ac_adapter AC 00000080 00000000
processor CPU 00000080 00000000
processor CPU 00000081 00000000
battery BAT0 00000080 00000001
ac_adapter AC 00000080 00000001
processor CPU 00000080 00000000
processor CPU 00000081 00000000
battery BAT0 00000080 00000001
button/lid LID 00000080 00000001
button/lid LID 00000080 00000002

The message above appeared when the AC power was disconnected, the power was reconnected, the laptop’s lid was closed and the lid was again opened.

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