I just got the K70 RGB keyboard with an updated firmware (1.30). It works in Windows, and mostly does not work in Linux (Ubuntu 14.04). I think I've been able to boot into Linux twice with it working, but mostly I can't even type my password to log in (no keystrokes are registered).
I tried going through the 30 pages of this post, but it's late :)
Does this driver allow the keyboard to work ON BOOT, or does it need to be loaded by having *another* keyboard plugged in?
Thanks!