well,I got fedora 9 in one of my partitions(but not using!I am a Debian elitist you know

) .(I installed fedora livemedia).
as with nvidia driver: make sure in your "lsmod" output that "nvidia" is listed
BTW,you can edit /etc/X11/xorg.conf accordingly if any such need arises.the new xorg.conf is bare minimum.
Now Fedora too slowly shifted from sysVinit to
upstart event based init daemon.
So,actually /etc/init.d/gdm doesnot exist. I think they use some other file.also chances are,fedora already using gdm auto-login.
anyways,make sure the startup script /etc/X11/prefdm exists and contents are as below:
Code:
cat /etc/X11/prefdm
#!/bin/sh
PATH=/sbin:/usr/sbin:/bin:/usr/bin
# shut down any graphical boot that might exist
if [ -x /usr/bin/rhgb-client ]; then
/usr/bin/rhgb-client --quit
fi
# We need to source this so that the login screens get translated
[ -f /etc/sysconfig/i18n ] && . /etc/sysconfig/i18n
# Run preferred X display manager
preferred=
if [ -f /etc/sysconfig/desktop ]; then
. /etc/sysconfig/desktop
if [ "$DISPLAYMANAGER" = GNOME ]; then
preferred=/usr/sbin/gdm
elif [ "$DISPLAYMANAGER" = KDE ]; then
preferred=/usr/bin/kdm
elif [ "$DISPLAYMANAGER" = WDM ]; then
preferred=/usr/bin/wdm
elif [ "$DISPLAYMANAGER" = XDM ]; then
preferred=/usr/bin/xdm
elif [ -n "$DISPLAYMANAGER" ]; then
preferred=$DISPLAYMANAGER
fi
fi
shopt -s execfail
[ -n "$preferred" ] && exec $preferred "$@" >/dev/null 2>&1 </dev/null
# Fallbacks, in order
exec gdm "$@" >/dev/null 2>&1 </dev/null
exec kdm "$@" >/dev/null 2>&1 </dev/null
exec wdm "$@" >/dev/null 2>&1 </dev/null
exec xdm "$@" >/dev/null 2>&1 </dev/null
# catch all exit error
exit 1
thats it!.
now,you may be knowing how to edit root permission configuration files?
if not,
press ALT+F2 to get run. inside run "gksu gedit /etc/whatever" and give root password when prompted.
edited: yeah,you may like to make /etc/sysconfig/desktop file with "
DISPLAYMANAGER" = GNOME" to make thing ease
@shashwath: OK