Uh, I can’t really second this. I’ve been using Intel graphics for the last 3+ years, and never had a single multi-monitor problem. Intels FOSS drivers (nVidia doesn’t publish FOSS drivers or even specs) support xrandr (the linux standard for multi-monitor configuration) like a charm. nVidia only offers xrandr support in the latest beta of their driver, forcing people to use their weird twinview utilities for years.