Please, let me add one last thing. I figured out that when I start the machine while my keyboard is switched off, turning it on at the greeter doesn't work. I have to remove the Unifying Receiver and plug it in again while the keyboard is on in order to be able to type.
This strange behaviour was introduced in Precise. I hope you have enough information at this point. Please feel free to ask for anything else. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-evdev in Ubuntu. https://bugs.launchpad.net/bugs/995715 Title: X defaulting keyboard locale to US at login after upgrading distribution if a Logitech Unifying Receiver is plugged in To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-evdev/+bug/995715/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp