To #11 Nicholas, I tried the solution Reuben proposed in #10 and installed the dbus trusty packages on Ubuntu 13.10 saucy. Since then, the problem with high CPU load has not appeared again (about a week now). So it seems to work.
In particular, I installed the following: dbus_1.6.18-0ubuntu3_amd64.deb dbus-1-dbg_1.6.18-0ubuntu3_amd64.deb dbus-1-doc_1.6.18-0ubuntu3_all.deb dbus-x11_1.6.18-0ubuntu3_amd64.deb libdbus-1-3_1.6.18-0ubuntu3_amd64.deb libdbus-1-3_1.6.18-0ubuntu3_i386.deb libdbus-1-dev_1.6.18-0ubuntu3_amd64.deb -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1230031 Title: dbus-daemon consumes 100% cpu without reason To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dbus/+bug/1230031/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs