dpkg trigger cycle detection was an experimental feature in Debian, and subsequently Ubuntu, was has now been removed from dpkg. Therefore, this bug report is no longer valid and I'm marking it as such.
If you are interested in more information about this issue you could look at: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=776910#42 ** Bug watch added: Debian Bug tracker #776910 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=776910 ** Changed in: dbus (Ubuntu) Status: Incomplete => Won't Fix -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to dbus in Ubuntu. https://bugs.launchpad.net/bugs/1394960 Title: package dbus 1.8.8-2ubuntu1 failed to install/upgrade: triggers looping, abandoned Status in dbus package in Ubuntu: Won't Fix Bug description: no display after the x started ProblemType: Package DistroRelease: Ubuntu 15.04 Package: dbus 1.8.8-2ubuntu1 Uname: Linux 3.17.1-031701-generic x86_64 ApportVersion: 2.14.7-0ubuntu10 Architecture: amd64 Date: Thu Nov 20 14:20:35 2014 DuplicateSignature: package:dbus:1.8.8-2ubuntu1:triggers looping, abandoned ErrorMessage: triggers looping, abandoned SourcePackage: dbus Title: package dbus 1.8.8-2ubuntu1 failed to install/upgrade: triggers looping, abandoned UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dbus/+bug/1394960/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp