I confirme that hiting power button on my laptop, halts the system and doesnt show other options, even with that option on control pannel ON.
ps. to see hibernate and standby, just close the shutdown windown and open it again. I've repportes that bug too. -- suspend and hibernate gone from shutdown menu (power button causes halt instead of "ask me") https://launchpad.net/bugs/81891 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs