[Nut-upsdev]   <APC> <Back-UPS 950> not supported by driver <usbhid-ups>

Mathias Passow mathias.passow at me.com
Mon May 6 14:40:07 BST 2019

Hi, I cant get it working.
Here is my terminal output:

root at debian-jessie-final:~# lsusb -d 051d:0002
Bus 001 Device 010: ID 051d:0002 American Power Conversion Uninterruptible Power Supply

root at debian-jessie-final:~# ls -l /dev/bus/usb/001/010
crw-rw-r-- 1 root nut 189, 9 Mai 6 15:35 /dev/bus/usb/001/010

root at debian-jessie-final:~# sudo upsdrvctl start
Network UPS Tools - UPS driver controller 2.7.4
Network UPS Tools - Generic HID driver 0.41 (2.7.4)
USB communication driver 0.33
Can't claim USB device [051d:0002]: could not detach kernel driver from interface 0: No route to host
Driver failed to start (exit status=1)

Any help for me?

Kind regards
Mathias Passow

Am 6. Mai 2019 um 15:07 schrieb Charles Lepple <clepple at gmail.com>:

On May 2, 2019, at 4:08 PM, Mathias Passow wrote:

Hi, the following UPS isnt supported by the driver „usbhid-ups“.

Manufacturer: APC
Model: Back-UPS 950 (https://www.apc.com/shop/de/de/products/APC-BACK-UPS-950VA-230V-AVR-Schuko-Sockets/P-BX950U-GR)

driver = usbhid-ups
port = auto
desc = "USV"


root at debian-jessie-final:~# sudo upsd -u root
Network UPS Tools upsd 2.7.4
fopen /var/run/nut/upsd.pid: No such file or directory
listening on port 3493
listening on ::1 port 3493
Can't connect to UPS [USV] (usbhid-ups-USV): No such file or directory

"upsd" is just one of several components of NUT. The "No such file or directory" refers to the Unix domain socket that the NUT driver creates. The nut-server init script in the Debian package will start the driver, upsd, and upsmon. (You also don't need the "-u root" flag if the /dev node is already in the NUT group.) Please try again and let us know how it works (051d:0002 devices should be supported by NUT).

Thanks for providing the Linux distribution and NUT version info.
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