Vincenzo, we will need a more comprehensive description of your envrionment... Are you using a Port Duplicator? I'm asking because of a very similar bug# 16777 (toshiba M400, as well).
in comment# 16, you mentioned using git version, your integrated LVDS can't work at all. that should be a problem , too. From the xrandr, it seems the LVDS is not detected at all...
Vincenzo, we will need a more comprehensive description of your envrionment... Are you using a Port Duplicator? I'm asking because of a very similar bug# 16777 (toshiba M400, as well).
in comment# 16, you mentioned using git version, your integrated LVDS can't work at all. that should be a problem , too. From the xrandr, it seems the LVDS is not detected at all...