This is a "me too" comment - I ran into exactly the same problem when I upgraded my Kubuntu 12:04 system to 12:10 Beta 1 last on Monday Sept 17th. And the problem is still there, today on Sept 20th - I mention this because the Beta 1 system is a fast-moving target, many new updates every day.
There is a simple work-around for the problem, pull the DNS server out of /var/log/syslog (grep for 'using nameserver' ), and edit it manually into /etc/resolv.conf. But then you have to do that again every time you move your computer. I tried to run an "apport-collect", but obviously only the original submitter of the report is allowed to do that. I think the problem may be the one that is discussed on the network- manager mailing list - see <https://mail.gnome.org/archives /networkmanager-list/2012-August/msg00094.html> Best regards Peder Chr. Nørgaard, M.Sc. Senior SW Developer www.actua.dk - Software that transforms the business of Energy -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to dnsmasq in Ubuntu. https://bugs.launchpad.net/bugs/1048430 Title: "dnsmasq not available on the bus" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1048430/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs