From everything I have seen or heard, Obama refused to discuss any cuts in the entitlement programs and he certainly wanted nothing to do with changes to SS.
well you must have slept through some key days of this story then, because every news outlet in the country showed that on October 18 the white house offered chained CPI as part of an overall package.
http://www.charlotteobserver.com/2012/12/18/3732908/obama-boehner-move-closer-to-fiscal.html