unity-control-center crashed with SIGSEGV in g_type_check_instance_cast()

brak unity i możliwości wejścia do systemu

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: unity-control-center 14.04.3+14.04.20140221-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-12.32-generic 3.13.4
Uname: Linux 3.13.0-12-generic x86_64
ApportVersion: 2.13.2-0ubuntu5
Architecture: amd64
CrashCounter: 1
CurrentDesktop: Unity
Date: Mon Feb 24 01:01:07 2014
ExecutablePath: /usr/bin/unity-control-center
InstallationDate: Installed on 2013-07-01 (237 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
ProcCmdline: unity-control-center appearance
SegvAnalysis:
 Segfault happened at: 0x7f08d46ec377 <g_type_check_instance_cast+71>: movzbl 0x16(%r9),%eax
 PC (0x7f08d46ec377) ok
 source "0x16(%r9)" (0x2e66666666c3f89e) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity-control-center
StacktraceTop:
 g_type_check_instance_cast () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/unity-control-center-1/panels/libappearance.so
 ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: unity-control-center crashed with SIGSEGV in g_type_check_instance_cast()
UpgradeStatus: Upgraded to trusty on 2014-02-06 (17 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
usr_lib_unity-control-center:
 activity-log-manager 0.9.7-0ubuntu10
 deja-dup 29.5-0ubuntu2
 gnome-control-center 1:3.6.3-0ubuntu50
 gnome-control-center-unity 1.3+14.04.20140117-0ubuntu1