Public bug reported: I'm facing the same bug in lightdm.
ProblemType: Package DistroRelease: Ubuntu 16.04 Package: slim 1.3.6-4 ProcVersionSignature: Ubuntu 4.4.0-4.19-generic 4.4.1 Uname: Linux 4.4.0-4-generic x86_64 ApportVersion: 2.19.4-0ubuntu2 AptOrdering: slim: Install lightdm: Configure slim: Configure NULL: ConfigurePending Architecture: amd64 Date: Wed Feb 10 20:29:50 2016 ErrorMessage: subprocess installed post-installation script returned error exit status 1 InstallationDate: Installed on 2016-01-28 (12 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160128) RelatedPackageVersions: dpkg 1.18.4ubuntu1 apt 1.1.10 SourcePackage: slim Title: package slim 1.3.6-4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: slim (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1544106 Title: package slim 1.3.6-4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/slim/+bug/1544106/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs