Still happens in Ubuntu 16.10 about every 10 to 15 minutes or so. I have to restart Bluetooth to get the mouse back every time.
[169553.167836] hid-generic 0005:0A5C:0001.0021: unknown main item tag 0x0
[169553.168076] input: Bluetooth 3.0 mouse as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.6/2-1.6:1.0/bluetooth/hci0/hci0:35/0005:0A5C:0001.0021/input/input115
[169553.168384] hid-generic 0005:0A5C:0001.0021: input,hidraw0: BLUETOOTH HID v1.29 Mouse [Bluetooth 3.0 mouse] on c4:d9:87:27:bd:b0
[172520.582427] hid-generic 0005:0A5C:0001.0022: unknown main item tag 0x0
[172520.582641] input: Bluetooth 3.0 mouse as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.6/2-1.6:1.0/bluetooth/hci0/hci0:35/0005:0A5C:0001.0022/input/input116
[172520.582961] hid-generic 0005:0A5C:0001.0022: input,hidraw0: BLUETOOTH HID v1.29 Mouse [Bluetooth 3.0 mouse] on c4:d9:87:27:bd:b0
Still happens in Ubuntu 16.10 about every 10 to 15 minutes or so. I have to restart Bluetooth to get the mouse back every time.
[169553.167836] hid-generic 0005:0A5C: 0001.0021: unknown main item tag 0x0 pci0000: 00/0000: 00:1d.0/ usb2/2- 1/2-1.6/ 2-1.6:1. 0/bluetooth/ hci0/hci0: 35/0005: 0A5C:0001. 0021/input/ input115 0001.0021: input,hidraw0: BLUETOOTH HID v1.29 Mouse [Bluetooth 3.0 mouse] on c4:d9:87:27:bd:b0 0001.0022: unknown main item tag 0x0 pci0000: 00/0000: 00:1d.0/ usb2/2- 1/2-1.6/ 2-1.6:1. 0/bluetooth/ hci0/hci0: 35/0005: 0A5C:0001. 0022/input/ input116 0001.0022: input,hidraw0: BLUETOOTH HID v1.29 Mouse [Bluetooth 3.0 mouse] on c4:d9:87:27:bd:b0
[169553.168076] input: Bluetooth 3.0 mouse as /devices/
[169553.168384] hid-generic 0005:0A5C:
[172520.582427] hid-generic 0005:0A5C:
[172520.582641] input: Bluetooth 3.0 mouse as /devices/
[172520.582961] hid-generic 0005:0A5C: