Upgrade of packages does no longer work

[Alexander Kallenbach]

Today I wanted to upgrade the packages in my Precise installation. The packages were downloaded but then nothing else happened. I waited for a long time but just my CPU utilization went up.
I tried it as well in the terminal with an "sudo apt-get upgrade" but with the same result. The same with Synaptics which did no longer react and which I had to terminate.

I already tried "sudo dpkg --configure -a" and "sudo dpkg-reconfigure -a" but with no result. I can update several packages with Synaptics but when I try to update all packages I get the result which I described above.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.9
ProcVersionSignature: Ubuntu 3.2.0-19.30-generic 3.2.11
Uname: Linux 3.2.0-19-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
Date: Wed Mar 21 18:05:01 2012
GsettingsChanges:
 com.ubuntu.update-manager first-run false
 com.ubuntu.update-manager launch-time 1332348025
 com.ubuntu.update-manager show-details true
 com.ubuntu.update-manager window-height 1000
 com.ubuntu.update-manager window-width 1280
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=de_DE:en
 TERM=xterm
 LANG=de_DE.UTF-8
 LC_MESSAGES=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: No upgrade log present (probably fresh install)

[Alexander Kallenbach (kallenbachalex)]

Uninstalled libreoffice-pdfimport and libreoffice-wiki-publisher and the upgrade worked. So a bug in these packages?

[Alexander Kallenbach (kallenbachalex)]

I could reinstall libreoffice-pdfimport but when I tried to reinstall libreoffice-wiki-publisher the installation-process hang.