Comment 4 for bug 585601

Here is the output from acpi_listen:
The only thing I do is first unplugging than I wait some second and I plug the AC-power in again.
As described above, the screen blanks (as if I closed my laptop lid), when I plug the AC-power in again,
nothing happens. (The screen stays blank - but I can wake it up by pressing any key)

~$ sudo acpi_listen
[sudo] password for xxx:
ac_adapter ADP1 00000080 00000000
processor CPU0 00000081 00000000
ac_adapter ADP1 00000080 00000001
processor CPU0 00000081 00000000

Further observation: When the the screen is blanked, I can also wake it up by pressing any
key on my keyboard even with unplugged AC-power - however in this case the screen wakes up dimmed.

By the way - if I close the lid of my laptop, then acpi_listen does not show any output.
I hope this is helpful. Please let me know if you want me to check anything else.