PC doesn't shut down when UPS power low?

[David Vincent]

Gilles Gravier wrote:
> Hi!
> 
> OK... yesterday there was a power failure due to a storm... so I decided
> to sit in front of the ubuntu server and watch if everything was OK. I
> noticed that by default, the power management recognizes the
> USB-attached UPS... and gives me indications as to what the UPS power
> level is... And in the settings, I can configure it so that it shuts
> down when UPS power level is beyond a certain point (LOW or CRITICAL).
> 
> Well... this doesn't happen. It doesn't trigger its own shutdown. But
> the power status applet dies...
> 
> Bug? Did I miss something?

I've got two APC UPSes, a Back-UPS 650 ES and a 725, both attach with
USB.  I had the same problem and eventually looked up "apcupsd",
installed and configured it and now everything works fine.

"nut" is another alternative, I've used that to talk to another
serial-attached Belkin UPS.

https://help.ubuntu.com/community/apcupsd

http://ubuntuforums.org/showthread.php?t=114748

https://help.ubuntu.com/community/UPSwithNUT

http://keystoneit.wordpress.com/2006/09/25/network-ups-tools-nut-on-ubuntu/

hth

-d