When I installed Mint, I selected to have login automatically. Is there a way to make it so I have to enter a password at welcome screen?
I have the opposite problem - I would like to auto login, but couldn't find a solution. I changed some configuration lines as suggested but it didn't work for me...
I'm running Mint Cinnamon 19. I got it to work. I ran the Login Window tool from the Mint menu, switch to the Users tab and removed my username at the bottom where it says Automatic Login. Rebooted and my login was required.
So in Linux Mint 17.3 in login windows preferences under Auto login or Options tab there's no setting for you to use. NOTE: Automatic login will fail if the users home directory is encrypted.
Yes there is an option but I can't select original user created during OS install. There is no user to select from drop down menu. If I create another user than I can set this new user to auto-login. EDIT: I don't remember of encrypting anything.
I suggest you submit your problem on the Mint forums. Or maybe there's already something about this issue, I didn't check. https://forums.linuxmint.com
When installing Linux Mint when you get to the user screen where you enter a name and password there is a box where you can check encrypt the home folder. By default it's unchecked. (not encrypted) Also LTS for Mint 17.3 ends next year so keep that in mind. I couldn't find anything concrete in a search for your situation. Post in Linux Mint forum as mentioned in this post or maybe someone here at Wilders will have an answer for you. It probably requires editing some file, then save it and reboot. Other alternative is to re-install Mint and select automatically login during the install process.
Thank you all for your answers. I'm using this system in Virtualbox and I'm planning to upgrade to newer version soon. So solving this problem is not that important to me. I tried to configure .conf file in past but after reboot I could not log in. I guess that I misconfigured something or indeed encrypted home folder during install. Again, thank you all for your help.