Debian :: Enabling Autologin In LXDE Not Working

I'm running Debian + LXDE in a VirtualBox. Here are the details:

Code: Select all➜  ~  hostnamectl
   Static hostname: debian64
         Icon name: computer-vm
           Chassis: vm
        Machine ID: #############################
           Boot ID: ###########################
    Virtualization: kvm
  Operating System: Debian GNU/Linux stretch/sid
            Kernel: Linux 4.2.0-1-amd64
      Architecture: x86-64

I really would like to jump into my desktop environment when I start my machine without the need to enter my user name and password. Apparently this is very easy to do. I added the following lines to my /etc/lightdm/lightdm.conf

Code: Select allpam-service=lightdm
pam-autologin-service=lightdm-autologin
autologin-user=username
autologin-user-timeout=0
session-wrapper=/etc/lightdm/Xsession

And also added my user to the autologin group

Code: Select allgroupadd -r autologin
gpasswd -a username autologin

As you can imagine, it didn't work. Otherwise I wouldn't be here... I also tried to install Slim and enable autologin adding the following line to the /etc/slim.conf

Code: Select allauto_login = yes

That didn't work either!

Am I missing anything? Enabling autologin in LXDE?