unity-control-center crashed with SIGABRT in g_assertion_message()

[miked]

This may be duplicate, but seems different from others.

 miked@free:~$ lsb_release -rd
Description: Ubuntu Xenial Xerus (development branch)
Release: 16.04
miked@free:~$

miked@free:~$ apt-cache policy unity-control-center
unity-control-center:
  Installed: 15.04.0+16.04.20160315-0ubuntu1
  Candidate: 15.04.0+16.04.20160315-0ubuntu1
  Version table:
 *** 15.04.0+16.04.20160315-0ubuntu1 500
        500 http://mirrors.us.kernel.org/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status
miked@free:~$

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: unity-control-center 15.04.0+16.04.20160315-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-17.33-generic 4.4.6
Uname: Linux 4.4.0-17-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
ApportVersion: 2.20.1-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Apr 9 00:29:09 2016
ExecutablePath: /usr/bin/unity-control-center
InstallationDate: Installed on 2016-04-03 (6 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
ProcCmdline: unity-control-center info
ProcEnviron:
 PATH=(custom, no user)
 SHELL=/bin/bash
 LANG=en_US.UTF-8
 LANGUAGE=en_US
 XDG_RUNTIME_DIR=<set>
Signal: 6
SourcePackage: unity-control-center
StacktraceTop:
 g_assertion_message () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_assertion_message_expr () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_hash_table_lookup () from /lib/x86_64-linux-gnu/libglib-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/unity-control-center-1/panels/libappearance.so
Title: unity-control-center crashed with SIGABRT in g_assertion_message()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 g_assertion_message () from /tmp/apport_sandbox_4UzMDi/lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_assertion_message_expr () from /tmp/apport_sandbox_4UzMDi/lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_hash_table_lookup () from /tmp/apport_sandbox_4UzMDi/lib/x86_64-linux-gnu/libglib-2.0.so.0
 cc_appearance_xml_load_xml_internal (xml=xml@entry=0x172d3a0, filename=filename@entry=0x17c6080 "/usr/share/gnome-background-properties/xenial-wallpapers.xml", in_thread=in_thread@entry=0) at cc-appearance-xml.c:303
 gnome_wp_file_changed (monitor=<optimized out>, file=<optimized out>, other_file=<optimized out>, event_type=<optimized out>, data=0x172d3a0) at cc-appearance-xml.c:337

[Launchpad Janitor (janitor)]

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

[andyczerwonka (andy-czerwonka)]

I get this crash when I have an external monitor attached to my mini displayport. In order to see the external monitor and to have unity not crash I have to run in Intel mode.

Description: Ubuntu 16.04 LTS
Release: 16.04

unity-control-center:
  Installed: 15.04.0+16.04.20160413-0ubuntu3
  Candidate: 15.04.0+16.04.20160413-0ubuntu3

Nvidia 367
Dell 7510 M1000M