Found the answer: In kernel 3.2 and 3.4 (but not 3.0), the module "hid_logitech_dj" is needed for full support of the unifying receiver. This module is not loaded into the ramdisk for our keyboards to work during the bootup process. I'm surprised that this bug hasn't been more prominent.
So to fix this, add with superuser permissions "hid_logitech_dj" to /etc/initramfs/modules. Then do "sudo update-initramfs -k all -u" Reboot. Note that this bug exists in 3.2 and upstream 3.4. My first bug! Now what happens? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/998651 Title: Unable to enter password to decrypt harddisk after upgrading to ubuntu 12.04 with wireless keyboard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/998651/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
