When autologon is active, lightdm will start the Unity 3D session, not the 2D (or any other shell that I want to auto-login to).
Is there a way to start the shell I want automatically (autologon)?
Anyway, if autologon is disabled, the last used session is launched, and that's fine. I just want to choose which is default with autologon.
The list of sessions is described in the directory /usr/share/xsessions.
Some of the more common session names are as follows:
Thus, if you change the light-dm configuration file to "ubuntu-2d" this will default the session to Unity-2D
i.e.
sudo nano /etc/lightdm/lightdm.conf
change the line
user-session=ubuntu
to
user-session=ubuntu-2d
Note - if you don't have a lightdm.conf file then for a autologin use the following values for this file:
[SeatDefaults]
greeter-session=unity-greeter
user-session=ubuntu-2d
autologin-user=myusername
autologin-user-timeout=0
Another possibility is to run:
sudo /usr/lib/lightdm/lightdm-set-defaults -s <session-name>
E.g.:
sudo /usr/lib/lightdm/lightdm-set-defaults -s ubuntu-2d
This will also create the lightdm.conf file if it wasn't already present.
