package libvdpau-va-gl1 0.3.4-3 failed to install/upgrade: trying to overwrite shared '/etc/X11/Xsession.d/20vdpau-va-gl', which is different from other instances of package libvdpau-va-gl1:amd64

[Mauro Rossi]

The package complained about an error in unpacking

The error was related to not being able to overwrite

/etc/X11/Xsession.d/20vdpau-va-gl

I saved a copy

performed the full reinstall of libvdpau-va-gl1

copied back the saved file to its place,
but now i don't know if that is ok,

please provide official solution for the problem for all users.

Mauro Rossi
<email address hidden>

ProblemType: Package
DistroRelease: Ubuntu 15.10
Package: libvdpau-va-gl1 0.3.4-3
Uname: Linux 4.3.2-040302-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
Date: Sat Dec 12 13:29:27 2015
DuplicateSignature: package:libvdpau-va-gl1:0.3.4-3:trying to overwrite shared '/etc/X11/Xsession.d/20vdpau-va-gl', which is different from other instances of package libvdpau-va-gl1:amd64
ErrorMessage: trying to overwrite shared '/etc/X11/Xsession.d/20vdpau-va-gl', which is different from other instances of package libvdpau-va-gl1:amd64
InstallationDate: Installed on 2014-08-26 (472 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
RelatedPackageVersions:
 dpkg 1.18.2ubuntu5.1
 apt 1.0.10.2ubuntu1
SourcePackage: libvdpau-va-gl
Title: package libvdpau-va-gl1 0.3.4-3 failed to install/upgrade: trying to overwrite shared '/etc/X11/Xsession.d/20vdpau-va-gl', which is different from other instances of package libvdpau-va-gl1:amd64
UpgradeStatus: Upgraded to wily on 2015-10-21 (52 days ago)

[Launchpad Janitor (janitor)]

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