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[Qu Bit <qbit@xxxxxxx>]

have an integrated graphics on DELL latitude E6430
Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)

also had the problem

switching AccelMethod
in /usr/share/X11/xorg.conf.d/20-intel.conf

from "uxa" (which was necessary some time ago to fix an earlier bug)
back to the default 
+ restarting X

solved the problem.

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https://bugs.launchpad.net/bugs/1392198

Title:
  unity-control center does not start after upgrade to unicorn

Status in unity-control-center package in Ubuntu:
  Confirmed

Bug description:
  michaelz@michaelz-XPS-12-9Q23:~$ unity-control-center

  (unity-control-center:6132): Gdk-ERROR **: The program 'unity-control-center' received an X Window System error.
  This probably reflects a bug in the program.
  The error was 'BadAlloc (insufficient resources for operation)'.
    (Details: serial 206 error_code 11 request_code 149 (unknown) minor_code 2)
    (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 ausgelöst (Speicherabzug geschrieben)
  michaelz@michaelz-XPS-12-9Q23:~$

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: unity-control-center 14.10.0+14.10.20140922-0ubuntu2
  ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
  Uname: Linux 3.16.0-25-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu Nov 13 08:42:12 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2012-12-10 (703 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  ProcEnviron:
   LANGUAGE=de_DE
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: unity-control-center
  UpgradeStatus: Upgraded to utopic on 2014-11-11 (2 days ago)
  usr_lib_unity-control-center: deja-dup 32.0-0ubuntu1

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