$ acpi_listen video VID 00000080 00000000 button/lid LID 00000080 00000001 ac_adapter AC 00000080 00000001 button/lid LID 00000080 00000002 battery BAT0 00000081 00000000 ^C
(it's exactly the same on karmic and jaunty)
$ acpi_listen
video VID 00000080 00000000
button/lid LID 00000080 00000001
ac_adapter AC 00000080 00000001
button/lid LID 00000080 00000002
battery BAT0 00000081 00000000
^C
(it's exactly the same on karmic and jaunty)