My experience with Ubuntu-preinstalled Dell laptops is far from perfect.
At one point, Ubuntu updated the binary nvidia driver in the LTS release (the one that came preinstalled on that particular Dell model, I think 14.04). The new driver removed support for the chip in the laptop, making it unusable without some extensive fishing for old driver packages and freezing further updates.
At one point, Ubuntu updated the binary nvidia driver in the LTS release (the one that came preinstalled on that particular Dell model, I think 14.04). The new driver removed support for the chip in the laptop, making it unusable without some extensive fishing for old driver packages and freezing further updates.