No idea what happend, it just tells me there is an error on session start (after rebooting for example)

[Arnaud Charolais]

No idea what happend, it just tells me there is an error on session start (after rebooting for example)

ProblemType: Package
DistroRelease: Ubuntu 15.10
Package: grub-efi-amd64-signed 1.55.2+2.02~beta2-29ubuntu0.2
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
Date: Thu Dec 17 00:50:37 2015
DuplicateSignature: package:grub-efi-amd64-signed:1.55.2+2.02~beta2-29ubuntu0.2:problèmes de dépendances - laissé non configuré
ErrorMessage: problèmes de dépendances - laissé non configuré
InstallationDate: Installed on 2015-06-19 (180 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
RelatedPackageVersions:
 dpkg 1.18.2ubuntu5.1
 apt 1.0.10.2ubuntu1
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.55.2+2.02~beta2-29ubuntu0.2 failed to install/upgrade: problèmes de dépendances - laissé non configuré
UpgradeStatus: Upgraded to wily on 2015-10-29 (49 days ago)