I'm sure this is very dependent on the machine you have. It would be best to contact the helpdesk of the maker for what these settings exactly do.
However, if there isn't a TV-out connection, I doubt if you will ever succeed.
Tell the forum make and model and maybe somebody will know the details you requested.
my latop's refresh setting is at "adapter default". there are two options,,,adapter default and optimal.
i'd like to connect this laptop to a tv and use the tv screen as a monitor, but, of course, the refresh rate must be 60hz. what specifically are adapter default and optimal, and do they accomodate different screens, or are they totally not compatable to a 60hz tv screen?