The conf property mentioned above, has changed path. In Ubuntu 11.10, it is a dconf property with path /org/gnome/settings-daemon/plugins/power/use-time-for-policy. Use dconf-editor to check and change it.
The conf property mentioned above, has changed path. settings- daemon/ plugins/ power/use- time-for- policy.
In Ubuntu 11.10, it is a dconf property with path /org/gnome/
Use dconf-editor to check and change it.