I was affected by this Bug in oneiric and precise. Kubuntu didn't power off when shutting down. But i found a solution to the problem here http://weits.blogspot.co.at/2012/02/kubuntu-1204-computer-wont-power-off.html.
The Problem is that in /etc/kde4/kdm/kdmrc "HaltCmd=/sbin/halt" replace it with "HaltCmd=/sbin/shutdown -P now"
(for good step by step guide follow link)
Solved problem for me.
I was affected by this Bug in oneiric and precise. weits.blogspot. co.at/2012/ 02/kubuntu- 1204-computer- wont-power- off.html.
Kubuntu didn't power off when shutting down.
But i found a solution to the problem here http://
The Problem is that in /etc/kde4/kdm/kdmrc "HaltCmd= /sbin/halt" /sbin/shutdown -P now"
replace it with "HaltCmd=
(for good step by step guide follow link)
Solved problem for me.