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Autologin greeter for lightdm
Python
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README.md Update README.md Sep 23, 2017

README.md

Autologin greeter for lightdm

I occasionally need autologin for X. I once wrote nodm for it, but I am not developing it anymore.

I have instead written a minimal autologin greeter for lightdm that has the same autologin behaviour as nodm, but being based on lightdm it stays on top of modern display manager requirements.

Some instructions for setting a custom greeter in lightdm can be found here

The difference between lightdm's built-in autologin and this greeter, are the behaviour in case of 0-seconds autologin delay: when lightdm autologs in with no delay, upon logout it will show the login window again. The intent is that if the default user logged out, they probably intend to log in again as a different user.

In my case, managing a kiosk-like setup, if the X session quits then the desired behaviour is to just start it again.

Lightdm with an autologin timeout of 1 or more seconds would work as I need it, but one sees the login dialog window appear and disappear on screen at each system startup. While it is functional, on a kiosk setup it looks estetically unprofessional to my taste.

With this greeter, the X session starts right away, and is restarted if it quits, without any flicker of a login dialog box.

If one is not setting up a kiosk-like setup, it's very likely that the default autologin behaviour of lightdm is the way to go, and that this greeter is not needed.

Dependencies

arch ubuntu fedora suse
lightdm lightdm lightdm lightdm lightdm
lightdm-gobject lightdm gir1.2-lightdm-1 lightdm-gobject liblightdm-gobject-1-0
PyGObject python-gobject python-gobject pygobject3 python3-gobject

Installation

Distribution Installation command
arch sudo pacman -S lightdm python-gobject
ubuntu sudo apt-get install lightdm gir1.2-lightdm-1 python-gobject
fedora sudo dnf install lightdm lightdm-gobject pygobject3
suse sudo zypper install lightdm liblightdm-gobject-1-0 python3-gobject
  1. Install the dependencies.
  2. Clone/download the project.
  3. Copy the files in bin/ and share/ to /usr.
  4. Ensure no other greeter is configured and reboot.

You'll now be using the autologin greeter!

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