apport-gtk crashed with struct.error in read32(): unpack requires a bytes object of length 4

[Grzegorz Galezowski]

I Installed today's updates on virtualbox. Then restarted the system. Upon restart, an XOrg error was shown so I chose to report it and then apport showed this error

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: apport-gtk 2.13.2-0ubuntu2
ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
Uname: Linux 3.13.0-5-generic x86_64
ApportLog:

ApportVersion: 2.13.2-0ubuntu2
Architecture: amd64
CrashReports:
 0:0:116:766131:2014-02-01 00:33:05.118142604 +0100:2014-02-01 00:33:06.118142604 +0100:/var/crash/_usr_bin_Xorg.0.crash
 640:0:116:56663:2014-02-01 00:34:32.023503303 +0100:2014-02-01 00:34:33.023503303 +0100:/var/crash/_usr_share_apport_apport-gtk.0.crash
Date: Sat Feb 1 00:34:32 2014
ExecutablePath: /usr/share/apport/apport-gtk
InstallationDate: Installed on 2014-01-04 (27 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140104)
InterpreterPath: /usr/bin/python3.3
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/share/apport/apport-gtk
PythonArgs: ['/usr/share/apport/apport-gtk']
SourcePackage: apport
Title: apport-gtk crashed with struct.error in read32(): unpack requires a bytes object of length 4
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Launchpad Janitor (janitor)]

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

[Warwick Stubbs (almondegas)]

This bug happened after I did the most recent set of updates. Turned computer back on and had a login screen where I never had the login screen before. Only the login wouldn't log me in even after correct password was typed. I used Ctrl + Alt + F1 to go to terminal, installed gdm, made it the default, rebooted and was able to enter the o/s after logging in again. The error report showed the same byte size notice.

The answer page I used when I reserched this suggested a fault in the user wallpaper. I have changed back to an Ubuntu and am about to try reverting to lightgdm.

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

[Expired for apport (Ubuntu) because there has been no activity for 60 days.]