redhat Display Management

Okay, all important system-wide settings in RH and RH-derived boxen are found in /etc/sysconfig, and possibly some stuff in /etc/X11/ or the /etc/init.d tree. So here we go.

Code:

[root@goldfedora sysconfig]# grep GNOME * desktop:DESKTOP="GNOME"

A quick edit later:

Code:

[root@goldfedora sysconfig]# grep GNOME * desktop:DESKTOP="KDE"

Now to go after KDM

Code:

[root@goldfedora sysconfig]# cd /etc/X11 [root@goldfedora X11]# find . -type f -exec grep -H gdm {} \; ./prefdm: preferred=gdm . . .

Okay, so /etc/X11/prefdm looks like a good starting point. Here's the key section in prefdm:

Code:

preferred= if [ -f /etc/sysconfig/desktop ]; then . /etc/sysconfig/desktop if [ "$DISPLAYMANAGER" = GNOME ]; then preferred=gdm elif [ "$DISPLAYMANAGER" = KDE ]; then preferred=kdm elif [ "$DISPLAYMANAGER" = XDM ]; then preferred=xdm fi fi

It appears that the change in /etc/sysconfig/desktop may effect both changes for us... not quite: That sets $DESKTOP, but not $DISPLAYMANAGER, so let's go back and edit that...

Code:

[root@goldfedora X11]# cd /etc/sysconfig/ [root@goldfedora sysconfig]# vim desktop . . . [root@goldfedora sysconfig]# cat desktop DESKTOP="KDE" DISPLAYMANAGER="KDE"

Now to test this theory...