Hmm, same problem here with Quantal. As described, system won't boot unless the procedure is made through the recovery option in the grub. This way Ubuntu loads but brightness of the screen can not be changed because "/sys/class/backglight/..." thing is not up.
Somehow, after upgrade, it once booted up normally with no error (kernel panic) and fully functional. Nevertheless, the next boot was again the same with a kernel panic :'( -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1041883 Title: Recent patch to asus-wmi module makes system unbootable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1041883/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs