I experienced this issue with a fresh install of 13.04 and resolved it by installing linux-image-extra-`uname -r` with the live-disc like described in this post on the Ubuntu Forums [0].
[0] http://ubuntuforums.org/showthread.php?t=2145897&p=12681509#post12681509 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1172852 Title: USB keyboard and mouse don't work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1172852/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs