i have same issue at my desktop pc, it denies a wired ps2 keyboard after grub and i can't use on screen keyboard too. so i can't gather debug info but there is no problem on 12.04 live version at same pc
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/995570 Title: Wired PS/2 keyboard/mouse on Foxconn D270S Motherboard not responding in 12.04 Live CD or after install. Same hardware works flawlessly with 10.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-evdev/+bug/995570/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
