I believe it is using kde2, but anyone's guess is as good as mine. I read the How-To, and then did
# su -c kcontrol
which returned this:
ngdao@paul:~$ su -c kcontrol
Password:
QPixmap: Cannot create a QPixmap when no GUI is being used
QPixmap: Cannot create a QPixmap when no GUI is being used
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified
kded: cannot connect to X server :0.0
ERROR: KUniqueApplication: Registering failed!
ERROR: Communication problem with kded, it probably crashed.
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified
kdeinit: Can't connect to the X Server.
kdeinit: Might not terminate at end of session.
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified
kcontrol: cannot connect to X server :0.0
ERROR: KUniqueApplication: Registering failed!
ERROR: Communication problem with kcontrol, it probably crashed.
mingdao@paul:~$ Mutex destroy failure: Device or resource busy
mingdao@paul:~$
I tried to edit the lines in the terminal, and found that I don't have /usr/share/config/kdmrc but rather /etc/kde2/kdm/kdmrc. I guess that means I'm using KDM. Anyway, I added kde and kdm in the lines for SessionTypes which already had default, kde2, twm, and failsafe - though kde2 doesn't show up at the login screen.
And I had /etc/X11/xdm/Xsession but this is what it contained:
#!/bin/sh
#
# $Xorg: Xsession,v 1.4 2000/08/17 19:54:17 cpqbld Exp $
#
#
#
#
# $XFree86: xc/programs/xdm/config/Xsession,v 1.3 2001/01/17 23:45:24 dawes Exp $
# invoke global X session script
. /etc/X11/Xsession
Well, once again I've broken something and can't fix it. This is my Linux story, and I'm determined to change it! However, there aren't enough hours in my day, and it seems ridiculous to spend most of my time "working to use my computer" rather than "using my computer to work." So, I'll look some more, sleep about 6 hours, look for new posts, search more - and then, if I can't fix it, I'll reinstall.
I do take notes, and with each new install I learn more. Thanks for the link to the How-To.