---

    - name: Check if lightdm is installed
      shell: dpkg-query -W -f='${Status}' lightdm | grep 'install ok installed'
      register: lightdm_installed
      failed_when: no
      changed_when: no
    
    - name: Adjusting lightdm settings
      template:
        src: 'lightdm.conf'
        dest: '/usr/share/lightdm/lightdm.conf.d/50-libreschool.conf'
        owner: 'root'
        group: 'root'
        mode: 0644
      when: lightdm_installed.rc == 0
      notify: restart lightdm