Displays shows extra monitor

[rdesfo]

$ lsb_release -rd
Description: Ubuntu Raring Ringtail (development branch)
Release: 13.04

$ apt-cache policy gnome-control-center
gnome-control-center:
  Installed: 1:3.6.3-0ubuntu13
  Candidate: 1:3.6.3-0ubuntu13
  Version table:
 *** 1:3.6.3-0ubuntu13 0
        500 http://us.archive.ubuntu.com/ubuntu/ raring/main amd64 Packages
        100 /var/lib/dpkg/status

An additional monitor appears inside gnome-control-center Displays.

Doesn't seem to be effecting the other screens. I can still successfully extend and mirror my laptop screen with my hp monitor. I attached a picture showing the ghost screen.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: gnome-control-center 1:3.6.3-0ubuntu13
ProcVersionSignature: Ubuntu 3.8.0-6.13-generic 3.8.0-rc7
Uname: Linux 3.8.0-6-generic x86_64
ApportVersion: 2.8-0ubuntu4
Architecture: amd64
Date: Mon Feb 18 20:08:37 2013
ExecutablePath: /usr/bin/gnome-control-center
InstallationDate: Installed on 2012-12-08 (72 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
ProcEnviron:
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
 PATH=(custom, user)
 LANG=en_US.UTF-8
SourcePackage: gnome-control-center
UpgradeStatus: Upgraded to raring on 2013-02-18 (0 days ago)
usr_lib_gnome-control-center:
 activity-log-manager-control-center 0.9.4-0ubuntu6.1
 deja-dup 25.5-0ubuntu1
 gnome-control-center-signon 0.1.2bzr12.12.05-0ubuntu1
 gnome-control-center-unity 1.2daily13.02.15-0ubuntu1
 indicator-datetime 12.10.3daily13.02.06-0ubuntu1

[Launchpad Janitor (janitor)]

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

[Sebastien Bacher (seb128)]

The bug is old without recent report, closing. Better to open a new report if there is still a similar issue in recent Ubuntu versions