similar to: Fixing Drops With SMART1500LCDXL & USB-HID Driver

Hi Greg, I haven’t but I will give that a shot later this week and advise. Thanks for the tip. Thank you, David Zomaya Technical Support [cid:image007.png at 01D525AF.B38D63F0] 1111 W. 35th Street | Chicago, IL 60609 USA 773.869.1156 | david_zomaya at tripplite.com [cid:image008.png at 01D525AF.B38D63F0]<http://www.tripplite.com/> From: Nut-upsuser

Ok, so I have made some progress that seems to suggest the initial “fix” I stumbled upon isn’t required. I haven’t yet worked backwards to figure out reasons why our customers have had similar complaints or solve the problem on the CentOS VM yet, but that is on the todo list. I am hoping it ends up just being not enabling the service on startup, but I can’t say that explains away all the symptoms

Charles and Wolfy, Thanks for the replies. I added some responses below. I think I got the driver debugging right, but let me know if it is off. I should note: The CentOS 7.6 machine I have been testing with is a virtual machine (running on VMware ESXi 7.6). At least 1 customer and I have seen the same issue on VMs and physical boxes, so I don’t think that matters, but if it does let me know.

Thanks for the inputs. I’ll get CentOS 7.6 installed on a physical machine this week and follow up. Few responses and notes below in the interim. ”The log format looks okay, but I may not have been clear that I was looking for the log at the same time as when the kernel errors occur. So without the udev rules would be good.” Ah, sorry. Attached are these two files: 1-

"Can't claim USB device [09ae:3024]: could not detach kernel driver from interface 0: Operation not permitted" Is probably an issue with NUT grabbing the UPS... can you disconnect and reconnect the USB cable and try again? If that fails, maybe a udev rule will help. Thank you, David Zomaya Tripp Lite <http://www.tripplite.com/> ________________________________ From:

Glad to hear it's working, thanks Tom. Network UPS Tools team: is fixing this as simple as me telling you what new UPS protocols are HID-PDC compliant? Thank you, David Zomaya Tripp Lite<http://www.tripplite.com/> ________________________________ From: Tom Cooper <tom at cooperfamily.xyz> Sent: Wednesday, May 20, 2020 2:42 PM To: David Zomaya Cc: nut-upsuser Subject: Re:

Borrowing from our friends at Ask Ubuntu ( https://askubuntu.com/a/276637 ) there is. I've modified it for use with a Tripp Lite UPS and 3024 protocol below. Try disconnect/reconnect after and see what happens. :/etc/nut$ cat /etc/udev/rules.d/90-nut-ups.rules # /etc/udev/rules.d/90-nut-ups.rules ACTION=="add", \ SUBSYSTEM=="usb", \ ATTR{idVendor}=="09ae",

My thoughts for a test: * Just have MODE=standalone in nut.conf * Put [tripplite] driver = usbhid-ups port = auto productid=3024 desc = "Tripp Lite Internet600U" In ups.conf * Put LISTEN 127.0.0.1 3493 LISTEN ::1 3493 [tripplite] driver = usbhid-ups port = auto in upsd.conf That may be suboptimal but will probably work for a test. Side

Tested a Ubuntu 18.04 LTS virtual machine with NUT 2.7.4 and a 3024 protocol Tripp Lite UPS (mine is a INTERNET550U, but same protocol) :/etc/nut$ lsusb | grep Tripp Bus 002 Device 004: ID 09ae:3024 Tripp Lite I it got generally working (outputting reasonable responses to upsc, although there are some issues with variables like frequency) by adding productid=3024 to my ups.conf. Like this:

Wow - you're doing all the work for me! Thanks for the rule set.  I can't easily reboot that box just now, so I'm working on reloading the rules. When I try  udevadm control --reload-rules && udevadm trigger May 20 15:19:01 elmer systemd-udevd[3413]: Process '/sbin/crda' failed with exit code 234. May 20 15:19:01 elmer systemd-udevd[3413]: Using default

No, it's not. I'd defer to the list for tips on that one. First thing I'd try if no one else has ideas is checking lsusb and restarting the service. Thank you, David Zomaya Tripp Lite<http://www.tripplite.com/> ________________________________ From: Tom Cooper <tom at cooperfamily.xyz> Sent: Wednesday, May 20, 2020 7:00 PM To: David Zomaya Cc: nut-upsuser

That would be great.  If there is something I can do to collect data or troubleshoot, please let me know. ---- On Wed, 20 May 2020 08:51:14 -0400 David Zomaya <David_Zomaya at tripplite.com> wrote ---- I'm still working remotely, but I should be able to get something set up soon. I'll reply all here once I have something to report. Thank you, David Zomaya Tripp

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

Updates on this: 1) Making progress in the related Dev list thread here: https://alioth-lists.debian.net/pipermail/nut-upsdev/2019-June/007440.html 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? 2) I tried disabling usbcore.autosuspend, but

On Mon, Jun 17, 2019 at 6:10 PM David Zomaya <David_Zomaya at tripplite.com> wrote: > Hi Network UPS Tools Support, > > > > I’m not sure if this is a question for the “user group” or the developer > group”. > > > > 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

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

If I installed and tested against Ubuntu, how useful would that be in general and in this specific case? I think we've seen a few reports of issues with the newer 3024 protocols and I'd like to help get them sorted out. Thank you, David Zomaya Tripp Lite ________________________________ From: Nut-upsuser <nut-upsuser-bounces+david_zomaya=tripplite.com at

I'm running Raspbian Buster, but given that the error seems to be "higher order" than a hardware issue - one of parsing the protocol?  I suspect that Ubuntu would be a decent "lookalike" to model the issue.  ---- On Tue, 19 May 2020 22:31:56 -0400 David Zomaya <David_Zomaya at tripplite.com> wrote ---- If I installed and tested against Ubuntu, how useful would

After a quick glance, it looks like that older version of the INTERNET750U supports only a few controls Shutdown of the inverter, cancelling that shutdown, setting the delay for the shutdown timer, and enabling/disabling a USB watchdog function. My *guess* is that Network UPS Tools is just exposing the shutdown command as one command. Does that help? Note to users with the same model but

Hello List, David: I’ thanking you … :-) I’m using the tripplite_usb driver and the barcode on mine says: 9347AIOBC470902728 or 9347A10BC470902728. with pictures… https://drive.google.com/file/d/1SJWDr0g95KOD-FpbOPHUyl9bsbOKePlD/view?usp=sharing https://drive.google.com/file/d/1SFMT-GbZRcRO03gEy_7SszZ43-LYmEZM/view?usp=sharing