Mint 18.2 64b
Cinnamon 3.4.3

This is running in a VM on my machine so I'm not worried about login security. I've been looking around on the Mint forums and only found a lot of threads about troubleshooting problems with autologin.

The setting is not in the Login Window settings screen.

The setting is not in the Users and Groups settings screen.

Where is this setting located now?

  • 1
    cat /etc/X11/default-display-manager – user192526 Jul 26 '17 at 6:04
  • /usr/sbin/lightdm – jcollum Jul 26 '17 at 14:21
  • 1
    Not sure if it works like in xenial. Create the file /etc/lightdm/lightdm.conf.d/lightdm.conf with following content. [Seat:*] autologin-user = your_username – user192526 Jul 26 '17 at 15:18
up vote 4 down vote accepted

It seems there isn't a GUI setting for auto-login, except during initial installation.

Bahamut already pointed to the right solution. When look at the file: /etc/X11/default-display-manager, it points to the lightdm.

Then for Mint 18.2 (Cinnamon), the correct config file for lightdm is: /etc/lightdm/lightdm.conf.

The contents of the file could contain multiple settings:

[Seat:*]
autologin-guest=false
autologin-enable=true
autologin-user=USERNAME
autologin-user-timeout=0
allow-guest=false
  • Where USERNAME is your username, that should be auto-logged-in.
  • autologin-enable=true - this line was added for Linux MATE 18.3 64bit, but not tested for 18.2 Cinnamon. Remove it if necessary...

PS: Even it's too late to help the OP, it could be of help for other people. Let me know if someone can't get it working.

  • Hey thanks for answering. Since you're the only one, you get the check. – jcollum Nov 16 '17 at 16:27

Linux Mint 18.3 Cinnamon:

I did not have that /etc/lightdm/lightdm.conf at all. Instead, I appended code suggested by "Minister" here:

sudoedit /etc/lightdm/lightdm.conf.d/70-linuxmint.conf

and it works.

I am a NOOB and have been looking for the same answer for Mint 19. I found the following and hope that the answer helps others.

Menu-Preferences-System Settings-Login Window--Users Tab-Username---Enter username

Save and reboot

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