I don't have an AMD64 install to test on, but according to http://bugs.kde.org/show_bug.cgi?id=125263 this was fixed back in May.
** Changed in: kdebase (Ubuntu)
Status: Unconfirmed => Fix Released
--
kinfocenter does not show eth0 interface
https://launchpad.net/bugs/31261
--
kubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
