[Nut-upsuser] [EXTERNAL] Re: Tripp Lite SMART1500LCD repeatedly disconnecting and reconnecting

David Zomaya David_Zomaya at tripplite.com
Mon Dec 9 04:18:53 GMT 2019

I haven't tried it on RaspberryPi, but if there's some specific Tripp Lite information I can help with, let me know.

David Zomaya

Tripp Lite

From: Nut-upsuser <nut-upsuser-bounces+david_zomaya=tripplite.com at alioth-lists.debian.net> on behalf of Charles Lepple <clepple at gmail.com>
Sent: Sunday, December 8, 2019 8:36 PM
To: Layne Fowler
Cc: nut-upsuser
Subject: [EXTERNAL] Re: [Nut-upsuser] Tripp Lite SMART1500LCD repeatedly disconnecting and reconnecting

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.
On Dec 8, 2019, at 5:46 PM, Layne Fowler <layne.fowler at gmail.com<mailto:layne.fowler at gmail.com>> wrote:

My UPS is connected to a Raspberry Pi by USB. After a few hours of working, the service fails. Looking at kernel messages I noticed that the device is repeatedly disconnecting and reconnecting.

I have tried using a different USB port and using a brand new USB cable. I have not had success by changing config parameters like pollfreq/pollinterval/etc.

What is causing the UPS to keep disconnecting?

Not sure (it's a protocol issue lower than NUT), but does this post from Tripp Lite help the UPS automatically reconnect?


(you may need to do some RedHat-to-Debian translation for some of the pathnames.)

OS - Raspbian GNU/Linux 10 (buster)
Kernel - 4.19.75-v7+
Nut version - 2.7.4-8
Installation method - From package
UPS - Tripp Lite SMART1500LCD

Thanks for including all of the version information.
This message is for the addressee's use only. It may contain confidential information. If you receive this message in error, please delete it and notify the sender. Tripp Lite disclaims all warranties and liabilities, and assumes no responsibility for viruses which may infect an email sent to you from Tripp Lite and which damage your electronic systems or information. It is your responsibility to maintain virus detection systems to prevent damage to your electronic systems and information.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://alioth-lists.debian.net/pipermail/nut-upsuser/attachments/20191209/50774299/attachment.html>

More information about the Nut-upsuser mailing list