For me it worked after fully finishing upgrade to lucid (9.10 -> 10.04).
I had to manually run again aptitude dist-upgrade and aptitude -f install and so on. Then after reset or two, all works on all 3 computers. Please try this and write if it helps. ** Tags added: bad-upgrade ** Summary changed: - [lucid] Keyboard and mouse freeze after grub, usb and PS/2 keyboard not working in X + [lucid] Keyboard and mouse freeze after grub, usb and PS/2 keyboard not working in X (after upgrade? bad-upgrade to lucid) -- [lucid] Keyboard and mouse freeze after grub, usb and PS/2 keyboard not working in X (after upgrade? bad-upgrade to lucid) https://bugs.launchpad.net/bugs/555169 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs