Error on login Ubuntu MATE 15.04

[Christopher]

No further information

ProblemType: Crash
DistroRelease: Ubuntu 15.04
Package: plymouth 0.9.0-0ubuntu9
ProcVersionSignature: Ubuntu 3.19.0-14.14-generic 3.19.3
Uname: Linux 3.19.0-14-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.17.1-0ubuntu2
Architecture: amd64
Date: Thu Apr 16 06:12:16 2015
DefaultPlymouth: /lib/plymouth/themes/ubuntu-mate-logo/ubuntu-mate-logo.plymouth
ExecutablePath: /sbin/plymouthd
InstallationDate: Installed on 2015-02-26 (48 days ago)
InstallationMedia: Ubuntu-MATE 15.04 "Vivid Vervet" - Alpha amd64 (20150225)
MachineType: TOSHIBA Satellite P50-A
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-14-generic.efi.signed root=UUID=f37473e3-988b-451d-9c02-6980792222cf ro quiet splash vt.handoff=7
ProcCmdline: @sbin/plymouthd --mode=boot --pid-file=/run/plymouth/pid --attach-to-session
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-14-generic.efi.signed root=UUID=f37473e3-988b-451d-9c02-6980792222cf ro quiet splash vt.handoff=7
SegvAnalysis: Skipped: missing required field "Disassembly"
Signal: 11
SourcePackage: plymouth
TextPlymouth: /lib/plymouth/themes/ubuntu-mate-text/ubuntu-mate-text.plymouth
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 04/23/2014
dmi.bios.vendor: TOSHIBA
dmi.bios.version: 1.80
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: VG10ST
dmi.board.vendor: TOSHIBA
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnTOSHIBA:bvr1.80:bd04/23/2014:svnTOSHIBA:pnSatelliteP50-A:pvrPSPMKU-04002Q:rvnTOSHIBA:rnVG10ST:rvrTobefilledbyO.E.M.:cvnTOSHIBA:ct10:cvrToBeFilledByO.E.M.:
dmi.product.name: Satellite P50-A
dmi.product.version: PSPMKU-04002Q
dmi.sys.vendor: TOSHIBA

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1377378, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.