[Nut-upsuser] Communications with UPS denchi at localhost lost
lukashaase at gmx.at
Tue Oct 29 04:13:08 GMT 2019
I always had problems that my Smart-UPS 1500 had "hickups" with nut:
Connection would get lost, just to get restored seconds later again.
This resulted in annoying log entried and console messages but wasn't
too critical. For a few days, nut doesn't detect my UPS at all any more.
I get the console messages:
Broadcast message from nut at server (somewhere) (Tue Oct 29 04:54:50 2019):
UPS denchi at localhost is unavailable
However, my UPS is connected via USB as it has always been and is
detected by Linux:
T: Bus=01 Lev=01 Prnt=01 Port=04 Cnt=02 Dev#= 3 Spd=1.5 MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=051d ProdID=0002 Rev=00.06
S: Manufacturer=American Power Conversion
S: Product=Smart-UPS 1500 RM FW:617.3.I USB FW:1.5
C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=30mA
I: If#=0x0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=(none)
When I call the driver directly:
# /lib/nut/usbhid-ups -a denchi
Network UPS Tools - Generic HID driver 0.41 (2.7.4)
USB communication driver 0.33
device->Product is NULL so it is not possible to determine whether to
activate max_report_size workaround
No matching HID UPS found
Since the entire log is large, I post the output of "upshid-ups -a
denchi -DDDDD" here: https://pastebin.com/3AMcmD7i
Linux radix 4.19.0-6-amd64 #1 SMP Debian 4.19.67-2+deb10u1 (2019-09-20)
x86_64 GNU/Linux, nut 2.7.4 (Debian version).
I am afraid this is a bug in usbhid-ups. Any idea the issue can be
traced and fixed?
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