[xubuntu-users] Howto Start Xfce LightDM at second X display

[Tong Sun]

Hi,

How to start LightDM at second X display?

I want to start LightDM at the second X display and keep the first X
display intact. I.e., auto-starts X at virtual terminal VT8, which is
normally accessed by typing CTRL+ALT+F8. Thus, when typing
CTRL+ALT+F7, it will give a blank TTY on VT7. I want to do that
because I prefer to use `startx` to start my X session instead.

I've done some research myself, from
http://askubuntu.com/questions/51086/how-do-i-enable-auto-login-in-lightdm
http://unix.stackexchange.com/questions/87169/autostart-all-lightdm-seats-and-show-one-as-default

I think the tweak should be as easy as creating a file
/etc/lightdm/lightdm.conf.d/12-LoginOnVT8.conf, with the content of

[SeatDefaults]
vt=8

However, when I tried it, it doesn't work. LightDM/Xfce is still on
VT7. i.e., CTRL+ALT+F8 gives a blank TTY while CTRL+ALT+F7 shows the
login screen.

What's the proper way to do that?

Thanks