[gerner]

I also have an X1 Carbon, been running linux flawlessly for over a year, probably close to 2. I love it. It's great. I got some bleeding edge graphics drivers and play Strike Suit Zero without issues (but my standards are low) when I'm not having it do map reduce jobs :)

That said, we've got some Lenovo T440s in the office that come with a wifi card (Realtek RTL8192EE) that's unsupported by ubuntu at the moment (there's an active bug at ubuntu [1] that walks through the issues and has workarounds)

[1]: https://bugs.launchpad.net/bugs/1239578