[arch-general] Unable to dual seat- one nvidia card- lightdm

[arnaud gaboury]

>
> My issues:
> - I can not limit one user to one monitor. The screen uses the two monitots.
> - Second user has a "double" task bar in his mate session. Everything
> is repeated twice.

This issue is fixed. Creating a new user account solved this issue. I
do not know why, but some corrupted config file was in the user home
folder.

I still doesn't know how to deal with opening/running the two sessions.