can't choose desktop in lxdm

[obgr_seneca]

Hi,
I'm momentarily trying to build an lxdm package for Mandriva Linux, but now I'm facing a problem. First I had to patch lxdm because Mandriva stores its available desktops not in /usr/share/xsessions but in /etc/X11/dm/Sessions.
The problem is, I can choose an environment from the dropdown-menu and it will be stored in lxdm.conf but it doesn't have any effect about the desktop being started. It is starting the default environment defined in /etc/sysconfig/desktop
When I change the lines

Code: Select all

if [ $# -eq 1 -a -n  "$1" ], then
        LXSESSION=$1
else

at the beginning of /etc/to

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if [ $# -eq 1 -a -n  "$1" ], then
        LXSESSION=LXDE
else

it is starting LXDE. If I change them to

Code: Select all

if [ $# -eq 1 -a -n  "$1" ], then
        LXSESSION=GNOME
else

it is starting it is starting GNOME and so on.

Does anybody have an idea, how to fix this?

Oliver