I am getting the following error
GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface `org.gnome.SettingsDaemon.XRANDR_2' on object at path /org/gnome/SettingsDaemon/XRANDR
whenever I try to apply any changes to the Display setting in the Ubutnu 12.04. I have a external monitor Dell S2240L connected to the laptop, both the display are working and mouse and windows can be moved between both the display without any problem.
I tried the answers from this question but they do not help.