@rubiojr, is it possible for you to get the output of "lsmod" without inserting an external USB keyboard? E.g. you can ssh to it and run the command. I'm wondering there's something wrong with your udev rules.
BTW, I recommend you install a fresh stock Ubuntu Precise from ISO instead of upgrading from Oneiric. There's an "amd64+mac" version customized for MacBookAir in http://cdimage.ubuntu.com/daily- live/current/. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/903655 Title: Macbook Air 4,1 keyboard unusable after upgrading to Precise To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/903655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs