The root problem is that a dpkg invocation is failing because it can't get the lock.
dpkg: status database area is locked by another process And apt then tries to configure the package that has not been unpacked in this previous invocation. Were you using dpkg in parallel to update-manager? I'm not sure how else it could have happened... ** Summary changed: - package xserver-xorg-video-apm 1:1.2.3-0ubuntu1 failed to install/upgrade: ErrorMessage: package xserver-xorg-video-apm is already installed and configured + dpkg fails to get the lock, and confuses apt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/780731 Title: dpkg fails to get the lock, and confuses apt -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs