hardware: APC Smart UPS 750 RM 2U
I had some problems getting the UPS to work. In particular, the UPS was recognized easily but the killpower of the UPS during the shutdown did not work. I finally managed to get it working by turning the power off a bit early.
See the following mail thread for details:
SourceForge.net: Apcupsd UPS control software: apcupsd-users
I think this is an issue with the integration of apcupsd in SuSE and I suspect that somehow USB connectivity is gone at the moment killpower on the UPS is called.
I got it to work by using the KILLDELAY configuration parameter of apcupsd. I think it is a bug with integration of apcupsd in OpenSuSE 11.1. What do you think?