## Observation

openQA test in scenario opensuse-Tumbleweed-DVD-x86_64-lxde@64bit fails in
[first_boot](http://openqa.opensuse.org/tests/376325/modules/first_boot/steps/21)

There seem to be a couple short-comings in the process that are not handled yet
(which the previous desktop selection mode did account for):

a( how does a DE set it's preferred DM (gdm/sddm/lightdm) - this was part of
the desktopselection before
b) the selected DE is not appropriately pre-configured in
/etc/sysconfig/windowmanager

e.g. on the references openQA test, the only DE pattern selected was LXDE -
yet, in /etc/sysconfig/windowmanager, 'xfce' was set.

I'm not sure if this is also the reason that lightdm refused to do the
autologin (but it sounds plausible: what is configured cannot be started; once
the user logged in, the WM is stored in the users homw and future reboots would
do an autologin


## Reproducible

Fails since (at least) Build
[20170321](http://openqa.opensuse.org/tests/375069)


## Expected result

Last good: [20170320](http://openqa.opensuse.org/tests/374371) (or more recent)


## Further details

Always latest result in this scenario:
[latest](http://openqa.opensuse.org/tests/latest?machine=64bit&flavor=DVD&version=Tumbleweed&test=lxde&arch=x86_64&distri=opensuse)