Comment 10 for bug 809628

Since this is a change in the default behaviour of /sbin/halt and the binary is part of the upstart package, it is not the kernel to blame.

Testcase -> Oneiric, Kubuntu (i.e. KDM used and a KDE desktop), Unity purged:

1. Using KDE's "Shutdown" button actually does a halt with no poweroff, no matter if the "Shutdown" sequence is initiated inside a running KDE session or at the KDM login screen
2. Using the Power button of the PC at the KDM login screen does do the job normally (i.e. does poweroff).
3. Using /sbin/halt inside a KDE session or at the KDM login (in another terminal of course) does only halt no poweroff
4. Using /sbin/halt -p anywhere does poweroff the system as it is expected and as it was in Natty
5. The /etc/init.d/halt script is never executed though it should be at runlevel 0