Bug 100631

Cannot use the logitech k520 (046d:c52b) to unlock my luks disk at boot time

Hitting keyboard keys of this specific kayboard does not register while entering the disk unlock password

In the 3.x mail line kernels this does work.
in the 4.1 mainline kernel a corded hid keyboard does work but this specific keyboard does not work anymore.

The keybaord works fine after boot



----------------- dmesg snippet of connecting the keybaord after boot 
----------------- I added this because there might be some valueable device info in it

[   99.360175] usb 1-1.3: new full-speed USB device number 7 using xhci_hcd
[   99.451438] usb 1-1.3: New USB device found, idVendor=046d, idProduct=c52b
[   99.451447] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[   99.451451] usb 1-1.3: Product: USB Receiver
[   99.451455] usb 1-1.3: Manufacturer: Logitech
[   99.457673] logitech-djreceiver 0003:046D:C52B.000F: hiddev0,hidraw0: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:14.0-1.3/input2
[   99.585367] input: Logitech M310 as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/0003:046D:C52B.000F/0003:046D:1024.0010/input/input28
[   99.585525] logitech-hidpp-device 0003:046D:1024.0010: input,hidraw1: USB HID v1.11 Mouse [Logitech M310] on usb-0000:00:14.0-1.3:1
[   99.629488] input: Logitech K520 as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1.3/1-1.3:1.2/0003:046D:C52B.000F/0003:046D:2011.0011/input/input29
[   99.629596] logitech-hidpp-device 0003:046D:2011.0011: input,hidraw2: USB HID v1.11 Keyboard [Logitech K520] on usb-0000:00:14.0-1.3:2