It should be noted that there are other vendors as well, however these are vendors I trust myself and feel good about recommending to Datamation readers. That said, there is also one unusual Ubuntu laptop worth mentioning. It's a bit pricey for the specs provided, but it's cool nonetheless:
In this article, I've offered an honest roundup of my personal recommendations for purchasing your next Ubuntu compatible laptop. I stand by my recommendations in buying an Ubuntu pre-installed laptop over anything else. Simple fact is, if it's pre-installed with the OS of your choosing, you know it's compatible. However for the more adventurous among you, I've made some worthwhile suggestions to help you make your selections as well.
My final words to you on this will be as follows: avoid AMD graphics on laptops at all costs. They're going to give you ample grief and even if you do get it working correctly, you will be rolling the dice each time you upgrade your video drivers. Outside of that, think Intel – they offer the most reliable notebook experience bar none.