I'm working with Lubuntu 12.04 which includes xfce4-power-manager 1.0.11. That is with Lubuntu fully updated, so it does not know about the more recent releases (I believe 1.2 is current).
I am using an APC Back-UPS ES 350 (Model BE350U) connected via a simple signalling USB cable. And although it is a simple signalling cable, on one test machine which has apcupsd installed, it reports smart-like information, much more than one would get with dumb voltage signalling.
But XPM reports under Power Information: UPS:
Attribute - Value
Device - ups_hiddev0
Type - UPS
Power Supply - True
Energy full design - 0.0 Wh
Energy full - 0.0 Wh
Energy empty - 0.0 Wh
Voltage - 0.0 V
So it seems that XPM is not communicating with whatever backend it uses for the UPS, or the backend is not monitoring effectively.
Needless to say, I have no confidence that XPM will actually execute a graceful shutdown of the system in the event of a power outage.
Is this a known issue? If it is, has it been fixed in the current release? I don't know a thing about how XPM works with its backend(s), but I know that apcupsd will accurately monitor this UPS. Can XPM be configured to use that as the backend?
Last edited by John Hupp (2012-09-28 18:00:33)
Just noticed this happens also to me, with xubuntu 11.10 and xfpm 1.0.10
I don't know about new releases... I'll try quantal a couple of weeks after the release and check this :-)