Thanks for the update Larry. I should probably get a running list of the different solutions for when this issue has come up. In some of the cases, just connecting the Network UPS Tools driver seemed to resolve (e.g. in the case where I used a physical box and a user that emailed me directly). In other cases, some twist on the udev rules helped (this case, and my virtual machine case).
To the LCDT users, if there are any open issues, feel free to ping me. Thank you, David Zomaya [email protected] From: Layne Fowler <[email protected]> Sent: Wednesday, December 11, 2019 9:36 AM To: David Zomaya <[email protected]> Cc: nut-upsuser <[email protected]> Subject: Re: [EXTERNAL] Re: [Nut-upsuser] Tripp Lite SMART1500LCD repeatedly disconnecting and reconnecting Thought I'd follow up in case someone else runs into this issue. In the end what worked for me was tweaking the udev rules. I have had no USB disconnects or stale data warnings so far. I only used one rule for my UPS: # /etc/udev/rules.d/62-nut-usbups.rules SUBSYSTEM!="usb", GOTO="nut-usbups_rules_end" # TrippLite # e.g. TrippLite SMART1500LCD - usbhid-ups ACTION=="add|change", SUBSYSTEM=="usb|usb_device", SUBSYSTEMS=="usb|usb_device", ATTR{idVendor}=="09ae", ATTR{idProduct}=="2012", MODE="664", GROUP="nut", RUN+="/sbin/upsdrvctl stop; /sbin/upsdrvctl start" LABEL="nut-usbups_rules_end" My ups.conf: # /etc/nut/ups.conf pollinterval = 1 [ups] driver = usbhid-ups port = auto desc = "Tripp Lite SMART1500LCD" vendorid = 09ae productid = 2012 And I also removed MTP as it was trying to take the device. sudo apt-get remove --auto-remove libmtp-common On Mon, Dec 9, 2019 at 10:04 PM Layne Fowler <[email protected]<mailto:[email protected]>> wrote: 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 <[email protected]<mailto:[email protected]>> 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....@alioth-lists.debian.net<mailto:[email protected]>> on behalf of Charles Lepple <[email protected]<mailto:[email protected]>> 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 [email protected]<mailto:[email protected]> for review. ________________________________ On Dec 8, 2019, at 5:46 PM, Layne Fowler <[email protected]<mailto:[email protected]>> 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. ________________________________ 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. ________________________________ 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.
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