Add user icon in lubuntu to login screen

Here are the official answers that did for not really help:

• askubuntu.com

What solves this issue for me was an alternative with the AccountsService.

Note: as example we will use the username 'mike42'

Steps to create the icon file are as follows:

• Create an image with equal dimensions
• Save the image in .png format. The filename should be the username with no file extension. In our example where the username is 'mike42' the filename would be 'mike42' and not 'mike42.png'

For every account, there is a file /var/lib/AccountsService/users/<username>

In our example the entry would be /var/lib/AccountsService/users/mike42

Choose the image file that you 've just created and move it to the following path:

/var/lib/AccountsService/icons/<username>

In our example the path would be /var/lib/AccountsService/icons/mike42

Now we can edit the file /var/lib/AccountsService/users/<username> and add the following entry:

[User]
Icon=/var/lib/AccountsService/icons/<username>

In our example the content of the file(/var/lib/AccountsService/users/mike42) would be the following:

[User]
Icon=/var/lib/AccountsService/icons/mike42

Provide read access to the user lightdm for access the icon