> Specifically it is believed that this issue is due to Ubuntu shutting down USB before
> the killpower command is issued to the UPS, which which it is no longer possible to communicate
> without USB.
It seems that Ubuntu shuts down serial connections as well before the killpower command is issued to the UPS.
I have 4 different UPS at work with serial connections that also stopped shutting down and after update to 16.04.
> Specifically it is believed that this issue is due to Ubuntu shutting down USB before
> the killpower command is issued to the UPS, which which it is no longer possible to communicate
> without USB.
It seems that Ubuntu shuts down serial connections as well before the killpower command is issued to the UPS.
I have 4 different UPS at work with serial connections that also stopped shutting down and after update to 16.04.
How can I help with resolving the problem?