[systemd-devel] [PATCH 0/2] (dracut) hwdb needed in early boot for some keyboards

[Alexander E. Patrakov]

2013/11/13 Colin Guthrie <gmane at colin.guthr.ie>:
> What about if you generate it with the keyboard plugged in? It should
> include the usbhid module then, but does it actually work?

Will try a bit later, but I suspect this is the wrong direction of thought.

> The problem we're encountering is that even with the usbhid module
> included in the host-only initrd, it still doesn't work - even after
> manually modprobing it from a ps/2 keyboard.

All modules that are needed for the user's keyboard are included in the initrd.

> As I don't have the h/w I cannot tell what component is missing to make
> it all work. I'm currently suspecting some kind of usb host controller
> interface driver or something, but have yet to hear back from the user
> so any insights or info you have would be appreciated.

I'd suspect something related to USB power saving. This is the most
frequent reason for USB keyboards and mice to misbehave - the host
just turns them off mistakenly. So
/lib/udev/rules.d/42-usb-hid-pm.rules does look relevant.

-- 
Alexander E. Patrakov