Re: 23.0.60; Emacs should survive a lost X connection

[Richard Stallman]

    No, the emacs server keeps track of the number of emacsclients that are
    still connected, when that number is > 0 and you are doing C-x C-c it
    will warn that emacsclients are still connected 
    (see server-kill-emacs-query-function)

    In the case described here, there are no emacsclients that are still
    connected (they have died when X has died, or have been killed with
    xkill), but the server thinks otherwise.

Losing connection with the X server
has nothing to do with emacsclient.
You can't assume that an emacsclient process is dead
just because of losing contact with an X server.
You can't even assume this if they are on the same machine.

If there is a problem in dealing with loss of connection
to emacsclient, that's a separate issue.