Kubuntu 15.10.
I used to be asked for my password at every startup or reboot. Suddenly I am always being automatically logged in, even though I never checked "Automatic Login" in Settings.
In Settings -> User Manager, the checkbox "Automatic Login" is NOT checked. I tried checking it, rebooting, removing the check and rebooting again - but I still got Automatic Login even though it is disabled in Settings.
How can I turn on begin asked for my password / turn off Automatic Login again ?
(P.S. This started happening when I changed locale (from LANG=nl_NL.UTF-8 to LANG=en_US.UTF-8 in /etc/default/locale) - don't know if that was the cause though)
14:28 ~ $ id LB79
uid=1001(LB79) gid=1001(LB79) groups=1001(LB79),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),113(lpadmin),127(sambashare)
~ $ getent group nopasswdlogin
~ $
The computer boots straight to the desktop, there is no screen where you can choose an account to login.