Okay, so i have a new installed Mint 19.2 “Tina”
I’m posting this because i’m somewhat of a newb and figured it out on my own.
If anyone runs into this issue, the solution will be here.
So, if you enable Guest Accounts on your installation, you may run into this.
Your user account will not appear, only letting you log in into your guest account.
This happens because the file “lightdm.conf” will have two lines of code that will enable the guest account as well as hide the list of users…for some reason.
To solve, do the following:
1- CTRL + ALT + F1 – This will bring you to the login screen in terminal “form”.
2- Log in with your credentials and navigate into “etc/lightdm” using the “cd” command.
(Use “cd ..” until you get to the home folder,then use “cd etc/lightdm” and list the files there using “ls”)
3- Install VIM if you haven’t already using “sudo apt install vim”
4- Once in the folder, use the “ls” command to list all files within that folder.
5- From my experience, the “su” command won’t work. Use the command “sudo edit lightdm.conf”
6- It will open the file in VIM.
Now, edit both lines of code from “true” to “false”. This will both disable the guest account and disable the previous option to hide the user list, thus making your personal account appear again.
7- The file “lightdm.conf” is read-only. So, do “:set ma” to enable modifying.
8- For me, that didn’t work, as when i went to save, it still said it was read-only.
9- Use the command “:wq!” to both force VIM to write the changes (this won’t break anything) and issue a “reboot” command.
Again, if this is out of subreddit rules do tell me. First time posting here.
I just solved this myself and thought i’d contribute to newer users.