I have a GT 555M and last time I checked, I was not able to use two external displays (one through VGA and one with HDMI) under Linux, even with Bumblebee. Also

I have a GT 555M and last time I checked, I was not able to use two external displays (one through VGA and one with HDMI) under Linux, even with Bumblebee. Also, I don't think you get much of the actual benefits from Optimus through Bumblebee. Mostly because of nVidia being douchy with their drivers. My current solution is to boot to Windows and then work in Linux trough a VM. It works, but if I would by a new laptop for Linux today I would try to avoid Optimus.