I have been using w540 with 2880x1620px for about year and I really like it. Everything works well with Ubuntu 14.04. My only complaint is mouse buttons are mer

I have been using w540 with 2880x1620px for about year and I really like it. Everything works well with Ubuntu 14.04. My only complaint is mouse buttons are merged with trackpad buttons, but I don't use trackpad because it gets in a way when typing. So if I disable the trackpad, I cannot use point-mouse in the keyboard.