Comment 7 for bug 1385113

This bug is present in Ubuntu Vivid Vervet with Microsoft Bluetooth keyboard. It comes usually after a while when system has been idling and keyboard is in sleep mode.

[12326.421754] hid-generic 0005:045E:0762.000E: unknown main item tag 0x0
[12326.422274] input: Microsoft Bluetooth Mobile Keyboard 6000 as /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.6/4-1.6:1.0/bluetooth/hci0/hci0:35/0005:045E:0762.000E/input/input28
[12326.422767] hid-generic 0005:045E:0762.000E: input,hidraw3: BLUETOOTH HID v0.13 Keyboard [Microsoft Bluetooth Mobile Keyboard 6000] on c4:85:08:b6:25:af

Tested with latest "linux-image-3.19.0-9-generic" that comes with Vivid Vervet as also tested with mainline kernel "linux-image-3.19.2-031902-generic".