I guess the method has changed from RHEL5 to RHEL6...

How do I change the display manager from GDM to KDM?

-C

well SL6.1 is the same

click on your user name and select gdm,kdm,... from the menu on the bottom of the screen

I'm not talking about KDE or GNOME...I'm talking about Display Managers (GDM, KDM, SLIM, XDM, etc)

Seems that the /etc/sysconfig/desktop isn't in my standard install...but the /etc/X11/prefdm file does what I needed

-C

I don't seem to be able to get this to work. I edited the prefdm file, in a way tha seemed righ, bu when I reboot, I keep getting Gnome. Here is a bit of the file:

# Run preferred X display manager
quit_arg=
preferred=/usr/bin/xdm
if [ -f /etc/sysconfig/desktop ]; then
. /etc/sysconfig/desktop
if [ "$DISPLAYMANAGER" = GNOME ]; then
preferred=/usr/sbin/gdm
quit_arg="--retain-splash"
elif [ "$DISPLAYMANAGER" = KDE ]; then
preferred=/usr/bin/kdm
elif [ "$DISPLAYMANAGER" = WDM ]; then
preferred=/usr/bin/wdm
elif [ "$DISPLAYMANAGER" = XDM ]; then
preferred=/usr/bin/xdm