# stop lightdm

# rm -f /etc/lightdm/lightdm-gtk-greeter.conf 
# rm -f /etc/lightdm/lightdm-gtk-greeter-ubuntu.conf 
# rm -rf /etc/lightdm/lightdm.conf.d/
# rm -f /usr/share/lightdm/lightdm.conf.d/60-lightdm-gtk-greeter.conf

# start lightdm
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