I guess this is mainly a duplicate of Bug #144641 so it is marked as such. Please don't use displayconfig-gtk to activate or deactivate external monitors with Intel graphic hardware. You can use the command xrandr instead or in the future new Ubuntu release gnome-display-properties.
I guess this is mainly a duplicate of Bug #144641 so it is marked as such. Please don't use displayconfig-gtk to activate or deactivate external monitors with Intel graphic hardware. You can use the command xrandr instead or in the future new Ubuntu release gnome-display- properties.