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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Updates on this:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Making progress in the related Dev list thread here:
<a href="https://alioth-lists.debian.net/pipermail/nut-upsdev/2019-June/007440.html">
https://alioth-lists.debian.net/pipermail/nut-upsdev/2019-June/007440.html</a><br>
I’ll keep that thread up to date with progress as I go. But if there are specific things it would make sense to test here, just let me know. Otherwise, I figure reducing redundancy makes sense?
<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I tried disabling usbcore.autosuspend, but that did not seem to stop the drops<br>
An example of what I tried is below. I <i>believe</i> simply echo-ing “-1” will change the setting until the next reboot and it should apply to any newly connected devices, so I did that, connected the device to the virtual machine, and checked syslog.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><br>
[root@localhost ~]# cat /sys/module/usbcore/parameters/autosuspend<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">2<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">[root@localhost ~]# echo -1 >/sys/module/usbcore/parameters/autosuspend<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">[root@localhost ~]# cat /sys/module/usbcore/parameters/autosuspend<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">-1<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">[root@localhost ~]# tail -f /var/log/messages<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:37:33 localhost kernel: usb 2-2.1: Product: Tripp Lite UPS<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:37:33 localhost kernel: usb 2-2.1: Manufacturer: Tripp Lite<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:37:33 localhost kernel: hid-generic 0003:09AE:2012.0005: hiddev0,hidraw1: USB HID v1.10 Device [Tripp Lite Tripp Lite UPS
] on usb-0000:02:02.0-2.1/input0<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:37:48 localhost kernel: usb 2-2.1: USB disconnect, device number 7<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:37:51 localhost kernel: usb 2-2.1: new low-speed USB device number 8 using uhci_hcd<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:37:51 localhost kernel: usb 2-2.1: New USB device found, idVendor=09ae, idProduct=2012<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:37:51 localhost kernel: usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:37:51 localhost kernel: usb 2-2.1: Product: Tripp Lite UPS<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:37:51 localhost kernel: usb 2-2.1: Manufacturer: Tripp Lite<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:37:51 localhost kernel: hid-generic 0003:09AE:2012.0006: hiddev0,hidraw1: USB HID v1.10 Device [Tripp Lite Tripp Lite UPS
] on usb-0000:02:02.0-2.1/input0<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:06 localhost kernel: usb 2-2.1: USB disconnect, device number 8<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:06 localhost chronyd[5489]: Selected source 74.208.235.60<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:09 localhost kernel: usb 2-2.1: new low-speed USB device number 9 using uhci_hcd<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:09 localhost kernel: usb 2-2.1: New USB device found, idVendor=09ae, idProduct=2012<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:09 localhost kernel: usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:09 localhost kernel: usb 2-2.1: Product: Tripp Lite UPS<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:09 localhost kernel: usb 2-2.1: Manufacturer: Tripp Lite<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:09 localhost kernel: hid-generic 0003:09AE:2012.0007: hiddev0,hidraw1: USB HID v1.10 Device [Tripp Lite Tripp Lite UPS
] on usb-0000:02:02.0-2.1/input0<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:25 localhost kernel: usb 2-2.1: USB disconnect, device number 9<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:25 localhost kernel: usb 2-2.1: new low-speed USB device number 10 using uhci_hcd<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:26 localhost kernel: usb 2-2.1: New USB device found, idVendor=09ae, idProduct=2012<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:26 localhost kernel: usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:26 localhost kernel: usb 2-2.1: Product: Tripp Lite UPS<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:26 localhost kernel: usb 2-2.1: Manufacturer: Tripp Lite<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:26 localhost kernel: hid-generic 0003:09AE:2012.0008: hiddev0,hidraw1: USB HID v1.10 Device [Tripp Lite Tripp Lite UPS
] on usb-0000:02:02.0-2.1/input0<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:40 localhost kernel: usb 2-2.1: USB disconnect, device number 10<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:43 localhost kernel: usb 2-2.1: new low-speed USB device number 11 using uhci_hcd<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:43 localhost kernel: usb 2-2.1: New USB device found, idVendor=09ae, idProduct=2012<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:43 localhost kernel: usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:43 localhost kernel: usb 2-2.1: Product: Tripp Lite UPS<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:43 localhost kernel: usb 2-2.1: Manufacturer: Tripp Lite<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:43 localhost kernel: hid-generic 0003:09AE:2012.0009: hiddev0,hidraw1: USB HID v1.10 Device [Tripp Lite Tripp Lite UPS
] on usb-0000:02:02.0-2.1/input0<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:38:58 localhost kernel: usb 2-2.1: USB disconnect, device number 11<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:39:01 localhost kernel: usb 2-2.1: new low-speed USB device number 12 using uhci_hcd<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:39:01 localhost kernel: usb 2-2.1: New USB device found, idVendor=09ae, idProduct=2012<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:39:01 localhost kernel: usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:39:01 localhost kernel: usb 2-2.1: Product: Tripp Lite UPS<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:39:01 localhost kernel: usb 2-2.1: Manufacturer: Tripp Lite<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jun 24 13:39:01 localhost kernel: hid-generic 0003:09AE:2012.000A: hiddev0,hidraw1: USB HID v1.10 Device [Tripp Lite Tripp Lite UPS
] on usb-0000:02:02.0-2.1/input0<br>
<br>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal" style="line-height:120%;text-autospace:none"><span style="font-size:11.0pt;line-height:120%;font-family:"Calibri",sans-serif;color:black;letter-spacing:-.05pt">Thank you,<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:120%;text-autospace:none"><b><span style="font-size:11.0pt;line-height:120%;font-family:"Calibri",sans-serif;color:black;letter-spacing:-.05pt">David Zomaya</span></b><span style="font-size:11.0pt;line-height:120%;font-family:"Calibri",sans-serif;color:black;letter-spacing:-.05pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;letter-spacing:-.05pt">Technical Support<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1F497D;letter-spacing:-.05pt"><img border="0" width="211" height="51" style="width:2.1979in;height:.5312in" id="_x0000_i1031" src="cid:image002.png@01D52A8D.29F4C4C0"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:120%;text-autospace:none"><span style="font-size:10.0pt;line-height:120%;font-family:"Calibri",sans-serif;color:black;letter-spacing:-.05pt">1111 W. 35th Street | Chicago, IL 60609 USA<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:120%;text-autospace:none"><span style="font-size:10.0pt;line-height:120%;font-family:"Calibri",sans-serif;color:black;letter-spacing:-.05pt">773.869.1156 | david_zomaya@tripplite.com<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-top:9.0pt;line-height:120%;text-autospace:none">
<a href="http://www.tripplite.com/"><span style="font-size:8.0pt;line-height:120%;font-family:"Calibri",sans-serif;color:black;letter-spacing:-.05pt;text-decoration:none"><img border="0" width="92" height="22" style="width:.9583in;height:.2291in" id="_x0000_i1030" src="cid:image004.png@01D52A8D.29F4C4C0"></span></a><span style="font-family:"Minion Pro";color:black"><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> David Zomaya <David_Zomaya@tripplite.com>
<br>
<b>Sent:</b> Tuesday, June 18, 2019 8:28 AM<br>
<b>To:</b> Greg Oliver <oliver.greg@gmail.com><br>
<b>Cc:</b> nut-upsuser@alioth-lists.debian.net; Jonathan Manzanilla <Jonathan_Manzanilla@tripplite.com>; Eric Cobb <Eric_Cobb@tripplite.com><br>
<b>Subject:</b> RE: [EXTERNAL] Re: [Nut-upsuser] Fixing Drops With SMART1500LCDXL & USB-HID Driver<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi Greg,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I haven’t but I will give that a shot later this week and advise.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Thanks for the tip.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height:120%;text-autospace:none"><span style="font-size:11.0pt;line-height:120%;font-family:"Calibri",sans-serif;color:black;letter-spacing:-.05pt">Thank you,<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:120%;text-autospace:none"><b><span style="font-size:11.0pt;line-height:120%;font-family:"Calibri",sans-serif;color:black;letter-spacing:-.05pt">David Zomaya</span></b><span style="font-size:11.0pt;line-height:120%;font-family:"Calibri",sans-serif;color:black;letter-spacing:-.05pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;letter-spacing:-.05pt">Technical Support<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1F497D;letter-spacing:-.05pt"><img border="0" width="211" height="51" style="width:2.1979in;height:.5312in" id="Picture_x0020_19" src="cid:image007.png@01D52A8A.A191D480"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:120%;text-autospace:none"><span style="font-size:10.0pt;line-height:120%;font-family:"Calibri",sans-serif;color:black;letter-spacing:-.05pt">1111 W. 35th Street | Chicago, IL 60609 USA<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:120%;text-autospace:none"><span style="font-size:10.0pt;line-height:120%;font-family:"Calibri",sans-serif;color:black;letter-spacing:-.05pt">773.869.1156 |
<a href="mailto:david_zomaya@tripplite.com">david_zomaya@tripplite.com</a><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-top:9.0pt;line-height:120%;text-autospace:none">
<a href="http://www.tripplite.com/"><span style="font-size:8.0pt;line-height:120%;font-family:"Calibri",sans-serif;color:black;letter-spacing:-.05pt;text-decoration:none"><img border="0" width="92" height="22" style="width:.9583in;height:.2291in" id="Picture_x0020_2" src="cid:image008.png@01D52A8A.A191D480"></span></a><span style="font-family:"Minion Pro";color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Nut-upsuser <<a href="mailto:nut-upsuser-bounces+david_zomaya=tripplite.com@alioth-lists.debian.net">nut-upsuser-bounces+david_zomaya=tripplite.com@alioth-lists.debian.net</a>>
<b>On Behalf Of </b>Greg Oliver<br>
<b>Sent:</b> Monday, June 17, 2019 9:36 PM<br>
<b>Cc:</b> <a href="mailto:nut-upsuser@alioth-lists.debian.net">nut-upsuser@alioth-lists.debian.net</a><br>
<b>Subject:</b> [EXTERNAL] Re: [Nut-upsuser] Fixing Drops With SMART1500LCDXL & USB-HID Driver<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:#C11B17">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">ishelpdesk@tripplite.com</a> for review.</span>
<o:p></o:p></p>
<div class="MsoNormal" align="center" style="text-align:center">
<hr size="2" width="100%" align="center">
</div>
<div>
<div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">On Mon, Jun 17, 2019 at 6:10 PM David Zomaya <<a href="mailto:David_Zomaya@tripplite.com">David_Zomaya@tripplite.com</a>> wrote:</span><span style="font-family:"Courier New""><o:p></o:p></span></p>
</div>
</div>
<div>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi Network UPS Tools Support,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I’m not sure if this is a question for the “user group” or the developer group”.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">My name is David Zomaya and I work at Tripp Lite in our technical support department. Copied on this email are Eric Cobb from our Product Management group & Jonathan Manzanilla
tech support subject matter expert for our single phase UPS product lines. <o:p>
</o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Recently, we received a complaint about our SMART1500LCDXL dropping and reconnecting in different Linux Operating Systems.A fter some in-house testing, the behavior seems to be
reproducible on a number of different *nix operating systems (Windows seems fine). Here’s an example of the drops in /var/log/messages (I’ll use CentOS 7.6 as my reference point throughout this email):<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:27 localhost kernel: usb 2-2.1: new low-speed USB device number 6 using uhci_hcd</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:27 localhost kernel: usb 2-2.1: New USB device found, idVendor=09ae, idProduct=2012</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:27 localhost kernel: usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:27 localhost kernel: usb 2-2.1: Product: Tripp Lite UPS</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:27 localhost kernel: usb 2-2.1: Manufacturer: Tripp Lite</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:27 localhost kernel: hid-generic 0003:09AE:2012.0004: hiddev0,hidraw1: USB HID v1.10 Device [Tripp Lite Tripp Lite UPS ] on usb-0000:02:02.0-2.1/input0</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:29 localhost upsd[6287]: UPS [TrippLiteUPS] data is no longer stale</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:29 localhost upsd: UPS [TrippLiteUPS] data is no longer stale</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D;background:yellow">May 29 19:25:45 localhost kernel: usb 2-2.1: USB disconnect, device number 6</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:47 localhost upsd[6287]: Data for UPS [TrippLiteUPS] is stale - check driver</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:47 localhost upsd: Data for UPS [TrippLiteUPS] is stale - check driver</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:49 localhost kernel: usb 2-2.1: new low-speed USB device number 7 using uhci_hcd</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:49 localhost kernel: usb 2-2.1: New USB device found, idVendor=09ae, idProduct=2012</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:49 localhost kernel: usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:49 localhost kernel: usb 2-2.1: Product: Tripp Lite UPS</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:49 localhost kernel: usb 2-2.1: Manufacturer: Tripp Lite</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:49 localhost kernel: hid-generic 0003:09AE:2012.0005: hiddev0,hidraw1: USB HID v1.10 Device [Tripp Lite Tripp Lite UPS ] on usb-0000:02:02.0-2.1/input0</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:51 localhost upsd[6287]: UPS [TrippLiteUPS] data is no longer stale</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:25:51 localhost upsd: UPS [TrippLiteUPS] data is no longer stale</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:27:24 localhost systemd: Started Session 2 of user npg.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:27:24 localhost systemd-logind: New session 2 of user npg.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D;background:yellow">May 29 19:29:04 localhost kernel: usb 2-2.1: USB disconnect, device number 7</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:29:05 localhost upsd[6287]: Data for UPS [TrippLiteUPS] is stale - check driver</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:29:05 localhost upsd: Data for UPS [TrippLiteUPS] is stale - check driver</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:29:07 localhost kernel: usb 2-2.1: new low-speed USB device number 8 using uhci_hcd</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:29:07 localhost kernel: usb 2-2.1: New USB device found, idVendor=09ae, idProduct=2012</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:29:07 localhost kernel: usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:29:07 localhost kernel: usb 2-2.1: Product: Tripp Lite UPS</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:29:07 localhost kernel: usb 2-2.1: Manufacturer: Tripp Lite</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:29:07 localhost kernel: hid-generic 0003:09AE:2012.0006: hiddev0,hidraw1: USB HID v1.10 Device [Tripp Lite Tripp Lite UPS ] on usb-0000:02:02.0-2.1/input0</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:29:07 localhost upsd[6287]: UPS [TrippLiteUPS] data is no longer stale</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D">May 29 19:29:07 localhost upsd: UPS [TrippLiteUPS] data is no longer stale</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
<span style="color:#1F497D;background:yellow">May 29 19:29:24 localhost kernel: usb 2-2.1: USB disconnect, device number 8</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">As a result, this impacted the user’s ability use NUT software on their Linux hosts. After some trial and error (and a lot of search engine use), I was able to find that the following
configuration changes/settings stop the drops and stabilize performance:<o:p></o:p></p>
<p class="gmail-m7546880817593477325msolistparagraph">1)<span style="font-size:7.0pt">
</span>This in the ups.conf file<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
pollinterval = 1<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
[TrippLiteUPS]<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
driver = usbhid-ups<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
port = auto<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in">
desc = "SMART1500LCD"<o:p></o:p></p>
<p class="gmail-m7546880817593477325msolistparagraph">2)<span style="font-size:7.0pt">
</span>The attached 62-nut-usbups.rules file at /etc/udev/rules.d/<o:p></o:p></p>
<p class="gmail-m7546880817593477325msolistparagraph">3)<span style="font-size:7.0pt">
</span>The attached 42-usb-hid-pm.rules /usr/lib/udev/rules.d/<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Below is some other information that may be relevant regarding my testing.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="gmail-m7546880817593477325msolistparagraph"><span style="font-family:Symbol">·</span><span style="font-size:7.0pt">
</span>I installed using the command “yum install nut.x86_64” <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="gmail-m7546880817593477325msolistparagraph"><span style="font-family:Symbol">·</span><span style="font-size:7.0pt">
</span>Operating system version:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-indent:.5in">
CentOS Linux release 7.6.1810 (Core) <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="gmail-m7546880817593477325msolistparagraph"><span style="font-family:Symbol">·</span><span style="font-size:7.0pt">
</span>Network UPS Tools version<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-indent:.5in">
Network UPS Tools upsd 2.7.2<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I’m not the most well-versed in Network UPS Tools, so I am not sure how “good” of a solution this is. I can however, get you more information on our product and testing if that
helps.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">The questions I have are:<o:p></o:p></p>
<p class="gmail-m7546880817593477325msolistparagraph"><b>1)</b><b><span style="font-size:7.0pt">
</span>Does the above seem like a “good” way to address this problem? (given that the drops are something we need to look into on our end)</b><o:p></o:p></p>
<p class="gmail-m7546880817593477325msolistparagraph"><b>2)</b><b><span style="font-size:7.0pt">
</span>Is there a good way to get this fix implemented in the driver?</b><o:p></o:p></p>
<p class="gmail-m7546880817593477325msolistparagraph"><b>3)</b><b><span style="font-size:7.0pt">
</span>Have you had any reports of similar issues?</b><o:p></o:p></p>
<p class="gmail-m7546880817593477325msolistparagraph"><b>4)</b><b><span style="font-size:7.0pt">
</span>While we are communicating, are there any other open Tripp Lite items I could help your team(s) with? No promises, but if I can help I’d like to.
</b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thanks for your time.
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:120%">
<span style="color:black;letter-spacing:-.05pt">Thank you,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:120%">
<b><span style="color:black;letter-spacing:-.05pt">David Zomaya</span></b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="letter-spacing:-.05pt">Technical Support</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;letter-spacing:-.05pt"><img border="0" width="211" height="51" style="width:2.1979in;height:.5312in" id="gmail-m_7546880817593477325Picture_x0020_19" src="cid:image009.png@01D52A8A.A191D480"></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:120%">
<span style="font-size:10.0pt;line-height:120%;color:black;letter-spacing:-.05pt">1111 W. 35th Street | Chicago, IL 60609 USA</span><o:p></o:p></p>
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<span style="font-size:10.0pt;line-height:120%;color:black;letter-spacing:-.05pt">773.869.1156 |
<a href="mailto:david_zomaya@tripplite.com" target="_blank">david_zomaya@tripplite.com</a></span><o:p></o:p></p>
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<a href="http://www.tripplite.com/" target="_blank"><span style="font-size:8.0pt;line-height:120%;color:black;letter-spacing:-.05pt;text-decoration:none"><img border="0" width="92" height="22" style="width:.9583in;height:.2291in" id="gmail-m_7546880817593477325Picture_x0020_2" src="cid:image010.png@01D52A8A.A191D480"></span></a><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">Have you tried adding "usbcore.autosuspend=-1" to your kernel boot options? I have had to do this in later kernels. You said you are running CentOS 7 and I have not had to do it there, but I do
have USB devices that do the exact same thing without that option.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">-Greg<o:p></o:p></span></p>
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