Arnaud, Have tried already with the same result (system log fragment is below). Also, if I understand well, upsdrvctl call doesn't need nut service be started at all.
Apr 30 17:03:53 localhost kernel: [ 6278.291294] usb 4-2: USB disconnect, address 3 Apr 30 17:03:57 localhost kernel: [ 6282.780029] usb 4-2: new low speed USB device using uhci_hcd and address 4 Apr 30 17:03:58 localhost kernel: [ 6282.956175] usb 4-2: configuration #1 chosen from 1 choice Apr 30 17:03:58 localhost kernel: [ 6283.115231] generic-usb 0003:0764:0501.0004: hiddev96,hidraw1: USB HID v1.10 Device [CPS UPS VALUE] on usb-0000:00:1d.2-2/input0 -- libusb_get_report: error sending control message: Operation not permitted https://bugs.launchpad.net/bugs/572262 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs