Hi,Just upgrade kernel. Check our wiki for more informations. Hope this help.
Yes xmx, but take 3.4 stable version.http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4-precise/ [nofollow]
Before you do that, restart your pc, then plug your adapter. If your card don't work, try wiki post you said.
Hm,Ok what is output of this commands :lspci -nn | grep 0280 and lshw -C networkUse pastebin.com !
Did you type lspci -nn | grep 0280 and lshw -C network in same time ?1st : lspci -nn | grep 02802nd : lshw -C Network