for those who still need to fix this, create a file (if it does not exist) in /etc called sddm.conf
in it add this:
[Autologin] User=YourLogonID Session=plasma.desktop
replacing YourLogonID with whatever user name you want to auto logon.
for those who still need to fix this, create a file (if it does not exist) in /etc called sddm.conf
in it add this:
[Autologin] plasma. desktop
User=YourLogonID
Session=
replacing YourLogonID with whatever user name you want to auto logon.