[Nut-upsuser] Tripp-Lite USB "REMOTE SHUTDOWN"

[David Zomaya]

Hi Aaron,

I actually have one of the units from back then now and investigation is ongoing.

I don't have a quick fix for you at this point, but can you shoot me your serial number and what firmware you loaded?

Thank you,
David Zomaya
Tripp Lite

david_zomaya at tripplite.com


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From: Nut-upsuser <nut-upsuser-bounces+david_zomaya=tripplite.com at alioth-lists.debian.net> on behalf of Aaron Stewart <aaron.stewart at baymaterials.com>
Sent: Tuesday, August 17, 2021 4:53:00 PM
To: nut-upsuser at alioth-lists.debian.net
Subject: [EXTERNAL] [Nut-upsuser] Tripp-Lite USB "REMOTE SHUTDOWN"

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Around March this year there was a thread on this mailing list “https://alioth-lists.debian.net/pipermail/nut-upsuser/2021-March/012332.html“. I appear to be running into the exact same issue, so I was hoping there was some resolution I could borrow wisdom from. Within seconds of connecting the USB cable from a ProxMox 6 server (Kernel 5.4.128) to a Tripp Lite SU2200RTXLCD2U , the UPS triggers “OUTPUT OFF REMOTE SHUTDOWN” and…cuts off output. Amazingly, this stack (NUT + server + USB + TrippLite UPS) worked beautifully at first, but has exhibited this behavior ever since I tested with “upsmon -c fsd”, and persisted through reboots. Was there any resolution to the prior discussion I can borrow from? Any flag or setting I should check on NUT? I already loaded the newest available firmware on the TrippLite unit. If I tail the upsmon log(s) when I plug the UPS in, the shutdown happens before the driver recognizes the device, leading me to assume like the previous poster this is out in the kernel/USB system somewhere. Thanks, Aaron
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