Dell officially supports Ubuntu and sells laptops with it on their store.
I've not had any issues with my XPS 13 on it.
I've not had any issues with my XPS 13 on it.
Meh. I'm writing this from an Asus EeePC which was once officially supported by Ubuntu, but now with broken graphics and wifi.
The non-free graphics driver is not included in Ubuntu anymore and the wifi works only with non-free binary blob.
Also, I recently found that wifi doesn't support channel 13 and 14 (found it accidentally when my laptop wasn't seeing the nearby hotspot) with the non-free blob. Now I run Debian testing.
Don't trust in those "Officially supported" things, unless it's Debian GNU/Linux. Otherwise, it's eventually going to be broken.
The channel visibility is regulatory thing; if you see only channels 1-12 you have set it for North America, most of the world can use 1-13, and Japan also 14 (for 802.11b only).
The world has changed from the times of the EeePC.