<div dir="ltr"><div>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!<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Dec 8, 2019 at 11:18 PM David Zomaya <<a href="mailto:David_Zomaya@tripplite.com">David_Zomaya@tripplite.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">




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<p>I haven't tried it on RaspberryPi, but if there's some specific Tripp Lite information I can help with, let me know.</p>
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<p>David Zomaya</p>
<p>Tripp Lite<br>
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<div id="gmail-m_-191276589545646682divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Nut-upsuser <nut-upsuser-bounces+david_zomaya=<a href="mailto:tripplite.com@alioth-lists.debian.net" target="_blank">tripplite.com@alioth-lists.debian.net</a>> on behalf of Charles Lepple <<a href="mailto:clepple@gmail.com" target="_blank">clepple@gmail.com</a>><br>
<b>Sent:</b> Sunday, December 8, 2019 8:36 PM<br>
<b>To:</b> Layne Fowler<br>
<b>Cc:</b> nut-upsuser<br>
<b>Subject:</b> [EXTERNAL] Re: [Nut-upsuser] Tripp Lite SMART1500LCD repeatedly disconnecting and reconnecting</font>
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<div><font size="2" face="verdana,arial,sans-serif" color="#C11B17"><span>This is an
<b>EXTERNAL</b> email. Please take a moment and think before clicking any links or opening any attachments from this email. If suspicious, please forward to <a href="mailto:ishelpdesk@tripplite.com" target="_blank">ishelpdesk@tripplite.com</a> for review.</span></font>
<hr>
On Dec 8, 2019, at 5:46 PM, Layne Fowler <<a href="mailto:layne.fowler@gmail.com" target="_blank">layne.fowler@gmail.com</a>> wrote:<br>
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<blockquote type="cite"><br>
<div><span style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline">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.</span><br style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
<br style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
<span style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline">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.</span><br style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
<br style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
<span style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline">What
 is causing the UPS to keep disconnecting?</span><br style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
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<div>Not sure (it's a protocol issue lower than NUT), but does this post from Tripp Lite help the UPS automatically reconnect?</div>
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<div><a href="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=" target="_blank">https://alioth-lists.debian.net/pipermail/nut-upsuser/2019-June/011451.html</a></div>
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<div>(you may need to do some RedHat-to-Debian translation for some of the pathnames.)</div>
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<div><br style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
<span style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline">OS
 - Raspbian GNU/Linux 10 (buster)</span><br style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
<span style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline">Kernel
 - 4.19.75-v7+</span><br style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
<span style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline">Nut
 version - 2.7.4-8</span><br style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
<span style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline">Installation
 method - From package</span><br style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
<span style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline">UPS
 - Tripp Lite SMART1500LCD</span><br style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
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<div>Thanks for including all of the version information.</div>
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