My Back-UPS XS 700U Shuts down the PC but does not go itself to sleep mode

[Anonymous user]

Hi,

Currently, I'm testing Back-UPS XS 700U in the following scenario on an Ubuntu powered PC with installed and running UPS Daemon, that is connected to UPS by USB:

1. I cut the power on UPS

2. Deamon initiates shut down on PC

3. PC is successfully shut down.

4. UPS starts beeping 3 times every minute.

5. In this condition I have assumed that the power from the PC is already cut (by UPS going to sleep mode) .

But my assumption was wrong. If I press the power key on PC it will be started. It means that the signal to UPS to power it down and saving battery is not received by UPS (Or is not sent rfom PC at all) and UPS is still running on Battery :

Have you any idea what could be the problem.

Actually, my goal is being able to successfully powering off the  UPS after PC shutdown to be able to Start PC again automatically when the power comes back (I already have ALWAYS ON on BIOS and checked it without UPS)

The followings are the status of the UPS :

APC      : 001,036,0906

DATE     : 2018-11-27 17:28:59 +0100  

HOSTNAME : Precision-Tower-3420

VERSION  : 3.14.12 (29 March 2014) debian

UPSNAME  : Precision-Tower-3420

CABLE    : USB Cable

DRIVER   : USB UPS Driver

UPSMODE  : Stand Alone

STARTTIME: 2018-11-27 17:27:52 +0100  

MODEL    : Back-UPS XS 700U   

STATUS   : ONLINE 

LINEV    : 232.0 Volts

LOADPCT  : 3.0 Percent

BCHARGE  : 97.0 Percent

TIMELEFT : 135.4 Minutes

MBATTCHG : 100 Percent

MINTIMEL : 1 Minutes

MAXTIME  : 1 Seconds

SENSE    : Medium

LOTRANS  : 140.0 Volts

HITRANS  : 300.0 Volts

ALARMDEL : 30 Seconds

BATTV    : 13.7 Volts

LASTXFER : Low line voltage

NUMXFERS : 0

TONBATT  : 0 Seconds

CUMONBATT: 0 Seconds

XOFFBATT : N/A

SELFTEST : NO

STATFLAG : 0x05000008

SERIALNO : 3B1834X66756  

BATTDATE : 2018-08-23

NOMINV   : 230 Volts

NOMBATTV : 12.0 Volts

NOMPOWER : 390 Watts

FIRMWARE : 924.Z3 .I USB FW:Z3

END APC  : 2018-11-27 17:29:08 +0100  

[BillP]

Hi,

Looks like you are running APCUPSD. I know that APCUPSD offers KillPower when running on Windows. I do not know what is used on Linux. I suggest you check with the APCUPSD group. 

[Anonymous user · Accepted solution]

Hi Bill,

Thanks for your reply. You were right.

It seems the problem is APCUPSD in Ubuntu 16.

I found some workarounds to send killpower before Ubuntu shuts down USB communication:

creating (and of course doing chmod +x on) a script at /lib/systemd/system-shutdown/apcups-killpower

#!/bin/sh
if [ "$1" = "poweroff" -a -f /etc/apcupsd/powerfail ]; then
    /etc/apcupsd/apccontrol killpower
fi

For more information please refer to:

https://bugs.launchpad.net/ubuntu/+source/apcupsd/+bug/1634572