According to your problems with autologin:
You have to create a new file called 12-autologin.conf in the directory
/etc/lightdm/lightdm.conf.d/ adding this lines:
[SeatDefaults]
autologin-user=username
Mickey 
According to your problems with autologin:
You have to create a new file called 12-autologin.conf in the directory
/etc/lightdm/lightdm.conf.d/ adding this lines:
[SeatDefaults]
autologin-user=username
Mickey