Hi all I m using a Logitech MX 5000 keyboard with an included MX 1000 mouse, both bluetooth using the same USB reciever. When the USB reciever is already plugged-in at boot-time and the Bluetooth service fires-up I get this message: ======================= BUG: warning: (value > m) at drivers/usb/input/hid-core.c:793/implement() (Tainted: P ) [] dump_trace+0x69/0x1b6 [] show_trace_log_lvl+0x18/0x2c [] show_trace+0xf/0x11 [] dump_stack+0x15/0x17 [] hid_output_report+0x23c/0x2e7 [] hid_submit_ctrl+0x4c/0x1d9 [] hid_submit_report+0x134/0x15f [] hiddev_ioctl+0x327/0x88a [] do_ioctl+0x4c/0x62 [] vfs_ioctl+0x24a/0x25c [] sys_ioctl+0x4c/0x66 [] syscall_call+0x7/0xb [<005b5402>] 0x5b5402 ======================= At this point both the keyboard and mouse do not work. I simply have to remove/replug the reciever to make them work properly... Here is the dmesg associated with the replug: usb 2-2: USB disconnect, address 3 usb 2-2.1: USB disconnect, address 6 usb 2-2.2: USB disconnect, address 4 usb 2-2.3: USB disconnect, address 5 usb 2-2: new full speed USB device using uhci_hcd and address 7 usb 2-2: configuration #1 chosen from 1 choice hub 2-2:1.0: USB hub found hub 2-2:1.0: 3 ports detected usb 2-2.2: new full speed USB device using uhci_hcd and address 8 usb 2-2.2: configuration #1 chosen from 1 choice input: Logitech Logitech BT Mini-Receiver as /class/input/input6 input: USB HID v1.11 Keyboard [Logitech Logitech BT Mini-Receiver] on usb-0000:00:1d.1-2.2 usb 2-2.3: new full speed USB device using uhci_hcd and address 9 usb 2-2.3: configuration #1 chosen from 1 choice input: Logitech Logitech BT Mini-Receiver as /class/input/input7 input,hiddev96: USB HID v1.11 Mouse [Logitech Logitech BT Mini-Receiver] on usb-0000:00:1d.1-2.3 Kernel: 2.6.19 on i686 I have attached the lsusb output and dmesg. - vin