On Tue, Oct 18, 2011 at 06:36:32PM +0200, Benny Lofgren wrote:
| Apart from the suggestions elsewhere in the thread, in the good old days
| I used to detect power outages by simply using a 12V power adapter and
| soldering together a special cable connecting the +12V to the DCD pin of
| an RS 232 serial connector.
A more modern approach (for those machines lacking a serial port)
might be plugging in a USB device that needs external power (fed from
the wallsocket) and using hotplugd. When the device disappears - arm
a timer to go down. When the device comes back, stop the timer.
I have to admit, I still have to set this up for my own (cheap, non-
managed) UPS, but I believe it should work.
Cheers,
Paul 'WEiRD' de Weerd
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