Just wanted to say I can confirm this. Still happening on my Herd5 Feisty install on a crappy old HP Omnibook 6100. Possible (untested) solution is to go to System-->Preferences-->Sessions and remove Network Manager from the startup items. This will avoid breaking the ubuntu-desktop package by the removal of network-manager-gnome and will also leave the program available on the computer. Think I'll go and test it now :P
-- network-manager should not set offline mode when it manages no device https://launchpad.net/bugs/82335 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs