@Peter: I had the same issue after upgrading to 15.04. and this kernel module solved it. Maybe it helps in your case as well?
I added hid-logitech-hidpp to /etc/initramfs-tools/modules then sudo update-initramfs -u as described here: http://askubuntu.com/questions/613139/ubuntu-15-04 -usb-devices-powered-off-at-encrypted-root-password-prompt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1238194 Title: keyboard doesn't work to enter password with encrypted partitions ubuntu 13.10 saucy To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1238194/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
