Comment 28 for bug 1723994

They should work, at least at initramfs stage. You can use the keyboard to decrypt rootfs proves that.

I am not sure why they stopped working in rootfs though.

Does your lsusb in #11 captured when the keyboards didn't work?

[ 2.862043] input: Microsoft Natural® Ergonomic Keyboard 4000 as /devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1.1/3-1.1:1.0/0003:045E:00DB.0004/input/input8
[ 2.862074] logitech-djreceiver 0003:046D:C52B.0003: hiddev0,hidraw0: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:14.0-3/input2
[ 2.908170] clocksource: Switched to clocksource tsc
[ 2.920192] microsoft 0003:045E:00DB.0004: input,hidraw1: USB HID v1.11 Keyboard [Microsoft Natural® Ergonomic Keyboard 4000] on usb-0000:00:14.0-1.1/input0
[ 2.920395] input: Microsoft Natural® Ergonomic Keyboard 4000 as /devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1.1/3-1.1:1.1/0003:045E:00DB.0005/input/input9
[ 2.980170] microsoft 0003:045E:00DB.0005: input,hidraw2: USB HID v1.11 Device [Microsoft Natural® Ergonomic Keyboard 4000] on usb-0000:00:14.0-1.1/input1
[ 2.996137] input: Logitech K360 as /devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3:1.2/0003:046D:C52B.0003/0003:046D:4004.0006/input/input10
[ 2.996278] logitech-hidpp-device 0003:046D:4004.0006: input,hidraw3: USB HID v1.11 Keyboard [Logitech K360] on usb-0000:00:14.0-3:1
[ 2.998053] input: Logitech M570 as /devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3:1.2/0003:046D:C52B.0003/0003:046D:1028.0007/input/input11
[ 2.998289] logitech-hidpp-device 0003:046D:1028.0007: input,hidraw4: USB HID v1.11 Mouse [Logitech M570] on usb-0000:00:14.0-3:2