chagenlog.Debian.gz in libva-x11-1 in both the i386 and amd64 package are the same. Do you have libva-x11-1 from a PPA installed?
** Changed in: libva (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libva in Ubuntu. https://bugs.launchpad.net/bugs/1424554 Title: package libva-x11-1 1.3.1-3 failed to install/upgrade: Versuch, gemeinsam benutztes »/usr/share/doc/libva-x11-1/changelog.Debian.gz« zu überschreiben, welches verschieden von anderen Instanzen des Paketes libva-x11-1:i386 ist Status in libva package in Ubuntu: Incomplete Bug description: ... ProblemType: Package DistroRelease: Ubuntu 14.10 Package: libva-x11-1 1.3.1-3 ProcVersionSignature: Ubuntu 3.16.0-30.40-generic 3.16.7-ckt3 Uname: Linux 3.16.0-30-generic x86_64 ApportVersion: 2.14.7-0ubuntu8.2 Architecture: amd64 Date: Mon Feb 23 09:47:50 2015 DuplicateSignature: package:libva-x11-1:1.3.1-3:Versuch, gemeinsam benutztes »/usr/share/doc/libva-x11-1/changelog.Debian.gz« zu überschreiben, welches verschieden von anderen Instanzen des Paketes libva-x11-1:i386 ist ErrorMessage: Versuch, gemeinsam benutztes »/usr/share/doc/libva-x11-1/changelog.Debian.gz« zu überschreiben, welches verschieden von anderen Instanzen des Paketes libva-x11-1:i386 ist InstallationDate: Installed on 2014-07-11 (226 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) SourcePackage: libva Title: package libva-x11-1 1.3.1-3 failed to install/upgrade: Versuch, gemeinsam benutztes »/usr/share/doc/libva-x11-1/changelog.Debian.gz« zu überschreiben, welches verschieden von anderen Instanzen des Paketes libva-x11-1:i386 ist UpgradeStatus: Upgraded to utopic on 2014-10-24 (121 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libva/+bug/1424554/+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