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

[Layne Fowler]

Charles, thank you for that link to David's earlier message. I tried adding
those udev rules and changing the pollinterval. I need to do some tinkering
but I don't think the part RUN+="/sbin/upsdrvctl stop; /sbin/upsdrvctl
start" is working right. If I manually run the commands then the USB
disconnects stop and there are no kernel messages. Running "sudo
/lib/nut/usbhid-ups -DD -a ups" also looks clean to me. I'll be sure to
update if I figure out how to get it fully working. Thanks!

On Sun, Dec 8, 2019 at 11:18 PM David Zomaya <David_Zomaya at tripplite.com>
wrote:

> 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> 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?
>
> https://alioth-lists.debian.net/pipermail/nut-upsuser/2019-June/011451.html
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__alioth-2Dlists.debian.net_pipermail_nut-2Dupsuser_2019-2DJune_011451.html&d=DwMFAg&c=f9s1WCuF-N6cmD_YaZ7gBg&r=lhr3k4au5dVQgHY_iS-v_t9g8PHVkn8Px_wyaupZGfQ&m=5bTj0FByjuC7ZwvwC7XsgqsH_kXRehDbkaYVEGxZrkQ&s=-Pz1JlSeu5vl0n4bXiBIaPW1nFRDro_yq3QvTTbwC5o&e=>
>
> (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.
> ------------------------------
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