[Nut-upsuser] [EXTERNAL] Tripp Lite "Remote Shutdown" when USB cable is attached

Fairfax, Charles A. FairfaxC at missouri.edu
Tue Feb 2 16:05:50 GMT 2021

Sorry, the list address got dropped on prior send.

Charles Fairfax

-----Original Message-----
From: Fairfax, Charles A. 
Sent: Tuesday, February 2, 2021 9:18 AM
To: David Zomaya <David_Zomaya at tripplite.com>; Adam Talbot <ajtalbot1 at gmail.com>
Subject: RE: [Nut-upsuser] [EXTERNAL] Tripp Lite "Remote Shutdown" when USB cable is attached

I don't know that my experience is helpful except that I had what sounds like a similar experience with a similar UPS in October of 2016.  I was attaching a Raspberry Pi (Raspbian wheezy) with NUT 2.6.4 to a TrippLite SU3000XLCD via USB and the UPS shut down, dropping the load.  I had never seen this  happen before with the 8 or so other older model TrippLite UPSs I have in service.  

Unfortunately I was not at liberty to perform much troubleshooting owing to the nature of the load and don't have another UPS of the same model.  I tried serial communication but was not successful.  Eventually I did get the UPS link to work.   If I remember correctly I booted the Pi after connecting the USB cable.  It has been working since and I have not unplugged the USB cable.

Have you tried booting the computer after connecting the USB cable?

-----Original Message-----
From: Nut-upsuser <nut-upsuser-bounces+fairfaxc=missouri.edu at alioth-lists.debian.net> On Behalf Of David Zomaya via Nut-upsuser
Sent: Monday, February 1, 2021 4:43 PM
To: Adam Talbot <ajtalbot1 at gmail.com>; nut-upsuser at alioth-lists.debian.net
Subject: Re: [Nut-upsuser] [EXTERNAL] Tripp Lite "Remote Shutdown" when USB cable is attached

I don't have a quick answer for you but I'll be in the office later this week and can grab a model with the same protocol and run a test on one of my Ubuntu boxes (which should be close enough to your Pi setup).

Thank you,
David Zomaya
Tripp Lite

From: Nut-upsuser <nut-upsuser-bounces+david_zomaya=tripplite.com at alioth-lists.debian.net> on behalf of Adam Talbot via Nut-upsuser <nut-upsuser at alioth-lists.debian.net>
Sent: Monday, February 1, 2021 3:39 PM
To: nut-upsuser at alioth-lists.debian.net
Subject: [EXTERNAL] [Nut-upsuser] Tripp Lite "Remote Shutdown" when USB cable is attached

This is an EXTERNAL email. Please take a moment and think before clicking any links or opening any attachments from this email. If suspicious, please forward to ishelpdesk at tripplite.com for review.
I am kinda stuck on this one.  Whenever I attach (USB to a linux box) my TrippLite UPS, it "REMOTE SHUTDOWN".  This is a new problem that has cropped up in the last 6 months.  At first I thought it was a NUT configuration issue, but now I believe this  to be some kind of kernel bug?  When I plug in the UPS, I can see the system logs show the UPS, then everything powers off.

UPS LCD shows the below error when I plug in the USB cable:

I tested this against 2 different X86 boxes and a Raspberry Pi. All cause the same result in the UPS.  Only one box (nas) has NUT installed and configured.

UPS is a Tripp Lite SU3000RTXLCD2U.

I am totally stumped on this one.  Below is a dump of basically all my specs.  Any ideas?

root at nas:~# uname -a
Linux nas 5.4.78-2-pve #1 SMP PVE 5.4.78-2 (Thu, 03 Dec 2020 14:26:17 +0100) x86_64 GNU/Linux

root at nas:~# cat /etc/nut/nut.conf
root at nas:~# cat /etc/nut/ups.conf
root at nas:~# cat /etc/nut/upsd.conf
root at nas:~# cat /etc/nut/upsmon.conf
root at nas:~# cat /etc/nut/upssched.conf
root at nas:~#

root at nas:~# cat /etc/debian_version

Before all this broke, I was able to monitor the UPS and get the following info:
battery.charge: 100
battery.charge.low: 20
battery.charge.warning: 20
battery.runtime: 6662
battery.temperature: 29.9
battery.type: PbAc
battery.voltage: 81.0
battery.voltage.nominal: 72.0
device.mfr: TRIPPLITE
device.model: TRIPPLITE UPS
device.serial: XXXXXXXXXXXXXX
device.type: ups
driver.name:  usbhid-ups
driver.parameter.pollfreq: 30
driver.parameter.pollinterval: 2
driver.parameter.port: auto
driver.parameter.synchronous: no
driver.version: 2.7.4
driver.version.data: TrippLite HID 0.82
driver.version.internal: 0.41
input.frequency: 60.0
input.transfer.high: 150.0
input.transfer.high.max: 150
input.transfer.high.min: 145
input.transfer.low: 55.0
input.transfer.low.max: 60
input.transfer.low.min: 55
input.voltage: 123.0
input.voltage.nominal: 120
output.current: 1.9
output.frequency: 60.0
output.frequency.nominal: 60
output.voltage: 120.0
output.voltage.nominal: 120
ups.beeper.status: enabled
ups.delay.shutdown: 20
ups.delay.start: 30
ups.firmware: 64
ups.load: 8
ups.mfr: TRIPPLITE
ups.model: TRIPPLITE UPS
ups.power: 226.0
ups.power.nominal: 3000
ups.productid: 4004
ups.serial: 2620ELCPS87A200020
ups.status: OL
ups.test.result: Done and passed
ups.timer.reboot: 0
ups.timer.shutdown: -1
ups.timer.start: 0
ups.vendorid: 09ae
ups.watchdog.status: 0

root at nas:/var/log# zcat messages.*.gz | grep -i tripp
Jan 15 11:05:05 nas kernel: [    1.571857] usb 3-1: Product: TRIPPLITE UPS
Jan 15 11:05:05 nas kernel: [    1.571858] usb 3-1: Manufacturer: TRIPPLITE
Jan 15 11:05:05 nas kernel: [    1.629210] hid-generic 0003:09AE:4004.0001: hiddev0,hidraw0: USB HID v1.11 Device [TRIPPLITE        TRIPPLITE UPS   ] on usb-0000:2e:00.3-1/input0

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