So I've been trying to revert the auto login option to off, but it doesn't seem to work, when i restart i always get the log in without asking for password. The file lightdm.conf is currently with these lines:

[SeatDefaults] autologin-user=blank

blank isnt any configured account...

Any one knows how to solve this?


  • Are you actually referring to autologin (system goes straight to user's desktop, bypassing the lightdm screen altogether) or passwordless login (normal lightdm login screen appears, user's desktop is loaded after clicking the account name)? – steeldriver Jun 21 '15 at 14:13
  • I think its the first option since i have a password set. It just goes straight into the desktop. – Maxrunner Jun 21 '15 at 14:31
  • Edit: No, the lightdm screen appears after a restart. And the account password box appears with the "log in" text that when i press goes immediately to the desktop. – Maxrunner Jun 21 '15 at 14:47

What you appear to be describing is passwordless login rather than autologin, and is controlled by membership of the nopasswdlogin Unix group rather than the lightdm configuration.

You can check whether your user is a member of that group using the id command


or (if logged in as a different user)

id username

I don't know a way to modify group memberships via the GUI, but from a terminal you should be able to use the standard user/group modification utilities usermod or gpasswd e.g.

sudo gpasswd --delete username nopasswdlogin

To see all members of the nopasswdlogin group, you can use

getent group nopasswdlogin
  • maxrunner@maxrunner-Qosmio-F60:~$ id maxrunner uid=1000(maxrunner) gid=1000(maxrunner) groups=1000(maxrunner),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),109(lpadmin),120(nopasswdlogin),125(sambashare) maxrunner@maxrunner-Qosmio-F60:~$ getent group nopasswdlogin nopasswdlogin:x:120:maxrunner – Maxrunner Jun 21 '15 at 15:40

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