Ubuntu, in spite of being a relatively rare operating system, generally provides quite good driver support, including for Intel products.
As in any operating system, you will need to update or reinstall drivers in the first instance when a certain item of hardware stops working.
Common problems can be: Link 1 - https://bugs.launchpad.net/ubuntu/ source/linux/ bug/1060268 Link 2 - https://bugs.launchpad.net/ubuntu/ source/bcmwl/ bug/732677 Link 3 - Gives an error similar to "Sorry, installation of this driver failed." Other links at the end of this Answer Before continuing with any of the fixes, some users of laptops should know that their Laptops or Netbooks have a button of Function key that Enables/Disables the Wireless card.All you have to do is wait for the installation to finish and you will be able to use the Broadcom wifi card.[March 19, 2011] Here's an update if you're trying to install the driver on a netbook with low-power b43 chipset: Thank you so much for this.I have started to reconfigure my old Dell Inspiron 6400 to run Linux instead of Windows since XP was discontinued.The wireless drivers issue was driving me mad until I stumbled across this article.