Nut upsuser - Oct 2008 - [Bug 278495] Re: megatec_usb does'nt detect ups

2008/10/27 Artin <admin at artinws.com>:
> Arnaud
>
> I have already posted the debug output of 2.2.1 :
> http://launchpadlibrarian.net/18231851/debug2.txt
uh, right. I was off doing another update for Lenny...

looking a bit at the trunk's changelog, I would guess this is a
regression. not dug much
for the time being, adding the below line in ups.conf (in the [ups]
section) should fix it:
subdriver = phoenix

if you can, you should also give a shot to the trunk:
      svn co svn://svn.debian.org/nut/trunk
      autoreconf && ./configure && make

@Alex: it's not documented in the manpage

-- Arnaud