Similarly, I did some research before I bought my Dell Latitude E4310, and it works flawlessly with Ubuntu, and always has.* Graphics (both on screen and on ext

Similarly, I did some research before I bought my Dell Latitude E4310, and it works flawlessly with Ubuntu, and always has.* Graphics (both on screen and on external monitors), WiFi, sound, even Bluetooth. It's not a guarantee, of course, but my general impression is that going with "pure Intel" (CPU, GPU, sound, WiFi) laptop helps ensure compatibility. *It's possible that the battery life is worse than Windows; I wouldn't know, because I've never used Windows on it.