Comment 20 for bug 243707

 The same problem with 12.04, Razer Imperator mouse, worked fine with previous version of ubuntu (don't remember which one). Sometimes it can be couple of hours between reconnects, sometimes it's every 10 seconds.

Oct 4 11:01:25 goldfrapp kernel: [163854.956202] usb 3-2: new full-speed USB device number 81 using xhci_hcd
Oct 4 11:01:25 goldfrapp mtp-probe: checking bus 3, device 81: "/sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/usb3/3-2"
Oct 4 11:01:25 goldfrapp kernel: [163855.038618] input: Razer Razer Imperator as /devices/pci0000:00/0000:00:1c.1/0000:03:00.0/usb3/3-2/3-2:1.0/input/input157
Oct 4 11:01:25 goldfrapp kernel: [163855.038987] generic-usb 0003:1532:002F.008F: input,hidraw2: USB HID v1.11 Mouse [Razer Razer Imperator] on usb-0000:03:00.0-2/inpu
t0
Oct 4 11:01:25 goldfrapp mtp-probe: bus: 3, device: 81 was not an MTP device
Oct 4 11:01:25 goldfrapp kernel: [163855.062507] input: Razer Razer Imperator as /devices/pci0000:00/0000:00:1c.1/0000:03:00.0/usb3/3-2/3-2:1.1/input/input158
Oct 4 11:01:25 goldfrapp kernel: [163855.062706] generic-usb 0003:1532:002F.0090: input,hidraw3: USB HID v1.11 Keyboard [Razer Razer Imperator] on usb-0000:03:00.0-2/i
nput1
Oct 4 11:02:56 goldfrapp kernel: [163945.965552] usb 3-2: USB disconnect, device number 81
Oct 4 11:02:57 goldfrapp kernel: [163946.533324] usb 3-2: new full-speed USB device number 82 using xhci_hcd
Oct 4 11:02:57 goldfrapp mtp-probe: checking bus 3, device 82: "/sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/usb3/3-2"
Oct 4 11:02:57 goldfrapp kernel: [163946.615939] input: Razer Razer Imperator as /devices/pci0000:00/0000:00:1c.1/0000:03:00.0/usb3/3-2/3-2:1.0/input/input159
Oct 4 11:02:57 goldfrapp kernel: [163946.616281] generic-usb 0003:1532:002F.0091: input,hidraw2: USB HID v1.11 Mouse [Razer Razer Imperator] on usb-0000:03:00.0-2/inpu
t0
Oct 4 11:02:57 goldfrapp mtp-probe: bus: 3, device: 82 was not an MTP device
Oct 4 11:02:57 goldfrapp kernel: [163946.639836] input: Razer Razer Imperator as /devices/pci0000:00/0000:00:1c.1/0000:03:00.0/usb3/3-2/3-2:1.1/input/input160
Oct 4 11:02:57 goldfrapp kernel: [163946.640091] generic-usb 0003:1532:002F.0092: input,hidraw3: USB HID v1.11 Keyboard [Razer Razer Imperator] on usb-0000:03:00.0-2/i
nput1
Oct 4 11:03:25 goldfrapp kernel: [163974.991776] usb 3-2: USB disconnect, device number 82