David, in your case it is because dual-head is not supported by the vesa driver. Of course, displayconfig-gtk should be able to discover this and not make a faulty xorg.conf that will crash the server.
David, in your case it is because dual-head is not supported by the vesa driver. Of course, displayconfig-gtk should be able to discover this and not make a faulty xorg.conf that will crash the server.