On Wed, 8 Jul 2015, Jiri Kosina wrote: > > > >> Bug as submitted on: https://bugzilla.kernel.org/show_bug.cgi?id=100631 > > > >> > > > >> Mailing it to this mailing list on advice of greg k-h > > > >> > > > >> ------------------------------------------------------------------------------ > > > >> > > > >> 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 > > Do you have the driver (hid-logitech-hidpp) present in the initrd? It > needs to be loaded at the time you are trying to use the keyboard. To be more specific -- prior to the commit you bisected to, the keyboard has been driven (in basic mode) by generic HID driver ('hid'). After that commit, it's being driven (in a full-featured mode) by hid++ driver (hid-logitech-hidpp), and therefore you need to have that driver present in any environment you are willing to use the keyboard in. That should normally be handled by your mkinitrd (or whatever mechanism you are using to generate the initrd) though. -- Jiri Kosina SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
