how to capture screenshots of GDM login page?

Fri Aug 25 15:11:21 UTC 2006

On 8/25/06, Nakai <hqiq8 at yahoo.co.jp> wrote:
> yonas Abraham wrote:
> > Hi all,
> >
> > I know how to take a screenshot when I am logged in to my GNOME
> > desktop using Print Screen or Alt+Print screen. But I have no idea how
> > to take screenshot of the login page?
>
> Using Xnest, you can take screenshot.
>
> $ Xnest :1 -query localhost

I am only getting blank screen