Changing the Default Session
The default session is set by configuration in /usr/share/lightdm/lightdm.conf.d/ that session packages provide. If you need to override this you can set:
[SeatDefaults]
user-session=name
Where name is the name of the session .desktop file from /usr/share/xsessions/*.desktop.
https://wiki.ubuntu.com/LightDM#Chan...efault_Session (this is the link where the above information came from)
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I did exactly what the above says (I replaced name with i3.desktop) but it still doesn't work, can anyone help? I use Xubuntu on a liveCD