package libc6 2.19-0ubuntu6 [modified: usr/share/doc/libc6/changelog.Debian.gz] failed to install/upgrade: subprocess new pre-installation script returned error exit status 2

[Nithin Yallankar]

System gets logout automaticaly and screen lock is not working.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libc6 2.19-0ubuntu6 [modified: usr/share/doc/libc6/changelog.Debian.gz]
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
Date: Fri Aug 8 13:10:12 2014
Dependencies:
 gcc-4.9-base 4.9-20140406-0ubuntu1
 libc6 2.19-0ubuntu6 [modified: usr/share/doc/libc6/changelog.Debian.gz]
 libgcc1 1:4.9-20140406-0ubuntu1
 multiarch-support 2.19-0ubuntu6
DuplicateSignature: package:libc6:2.19-0ubuntu6 [modified: usr/share/doc/libc6/changelog.Debian.gz]:subprocess new pre-installation script returned error exit status 2
ErrorMessage: subprocess new pre-installation script returned error exit status 2
InstallationDate: Installed on 2014-08-01 (7 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: eglibc
Title: package libc6 2.19-0ubuntu6 [modified: usr/share/doc/libc6/changelog.Debian.gz] failed to install/upgrade: subprocess new pre-installation script returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.