I have multiscreen setup on my Ubuntu machine with Ubuntu12.10, Intel integrated HD Grahics and NVidia GeForce 210. The lightdm version is 1.2.3.
I am facing two problems on the setup
1) On pressing CTRL-C the lightdm on Seat-0 restarts. I searched on the Internet and found out that this is a bug in lightdm package (https://bugs.launchpad.net/ubuntu/+bug/893590). But I am not sure how to update the package as APT says that the package is newest.
2) After the system starts, on Seat-1 there is a empty Ubuntu background with no options on it. Although if I explicitly start any application on that display(:1) from Seat-0, it works fine.
pasting lightdm.conf :
[SeatDefaults] autologin-guest=false autologin-session=lightdm-autologin greeter-session=unity-greeter user-session=ubuntu autologin-user=username [LightDM] minimum-display-number=0 minimum-vt=7 [Seat:0] xserver-layout=seat0 xserver-command=/usr/bin/X :0 -layout seat0 vt7 -novtswitch -sharevts [Seat:1] xserver-layout=seat1 xserver-command=/usr/bin/X :1 -layout seat1 vt8 -novtswitch -sharevts
Please take a look if there is anything missing in lightdm.conf to get this thing working