How can I set user pictures on Debian with lightdm?
Xfce does not seem to have a GUI facility for user management at all. I have tried installing gnome-system tools that contains user management dialog (users-admin) but I can't find where to set picture there.
I remember Gnome had "About me" dialog but that was GNOME 2. GNOME 3 probably also has something like that but I don't want to install GNOME if I can simply add PNG file and/or edit a config file somewhere for lightdm to look up.
I don't know if there is a way to do it with a GUI, but you could place a icon.face file in your user directory. That may cause issues, however.
An alternative is to use the AccountsService. Edit/create the file /var/lib/AccountsService/users/<username>, and add the following lines:
[User]
Icon=/somewhere/pathToIcon.icon
Make sure the lightdm user has read access to the icon (IDK, but maybe 755 permissions?)
Source: This Arch Linux wiki page.
As of Debian 10 "Buster" with Xfce4, managed renaming desired image picture to .face at user home directory and uncommenting greeter-hide-users=false line in [Seat:*] session at /etc/lightdm/lightdm.conf.
Since the Mate desktop-environment was introduced in Debian, this is now available in the mate-about-me application, which is part of mate-control-center as it was before in Gnome 2.
