unity-control-center crashes at startup in VNC environment

[Michal Hadrava]

Steps to reproduce: run gnome-session in vnc4server and then launch unity-control-center.

Output of unity-control-center:
(gnome-control-center.real:14321): Gdk-ERROR **: The program 'gnome-control-center.real' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadRequest (invalid request code or no such operation)'.
  (Details: serial 133 error_code 1 request_code 149 (RANDR) minor_code 8)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the GDK_SYNCHRONIZE environment
   variable to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
Trace/breakpoint trap (core dumped)

Traceback from gdb attached.

Best,
Michal

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity-control-center 14.04.3+14.04.20150916-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-30.55-generic 3.13.11.2
Uname: Linux 3.13.0-30-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
Date: Mon Mar 14 19:57:05 2016
InstallationDate: Installed on 2014-05-14 (670 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
ProcEnviron:
 LC_CTYPE=UTF-8
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unity-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
usr_lib_unity-control-center:
 deja-dup 30.0-0ubuntu4
 gnome-control-center 1:3.6.3-0ubuntu56.1

[Launchpad Janitor (janitor)]

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