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[Launchpad Bug Tracker <960073@xxxxxxxxxxxxxxxxxx>]

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

** Changed in: unity (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/960073

Title:
  Information disclosure when plugging an external monitor into a
  screen-locked system

Status in “unity” package in Ubuntu:
  Confirmed

Bug description:
  This problem occurs when my screen is locked on this laptop (such as
  when resuming from suspend), and I plug an external monitor in: for a
  brief moment the second screen shows not the locked screen graphic or
  a blank field, but the contents of what WILL be on that screen once
  the password is entered.  This morning as I did this I noticed a
  private e-mail on that screen, and realized that this is a security
  risk.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: unity 5.6.0-0ubuntu4
  ProcVersionSignature: Ubuntu 3.2.0-19.30-generic 3.2.11
  Uname: Linux 3.2.0-19-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 1.94.1-0ubuntu2
  Architecture: amd64
  CompizPlugins: [core,bailer,detection,composite,opengl,decor,snap,gnomecompat,grid,regex,mousepoll,compiztoolbox,resize,move,wall,animation,vpswitch,place,imgpng,workarounds,expo,fade,ezoom,session,scale,unityshell]
  CompositorRunning: compiz
  Date: Tue Mar 20 10:16:40 2012
  DistUpgraded: 2012-02-06 11:08:30,227 DEBUG enabling apt cron job
  DistroCodename: precise
  DistroVariant: ubuntu
  EcryptfsInUse: Yes
  GraphicsCard:
   Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:20e4]
     Subsystem: Lenovo Device [17aa:20e4]
  MachineType: LENOVO 7465CTO
  ProcEnviron:
   TERM=xterm
   LC_COLLATE=C
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: root=UUID=5237fceb-23d0-412d-84d9-b8f8b3bf28af ro quiet splash
  SourcePackage: unity
  UpgradeStatus: Upgraded to precise on 2012-03-13 (7 days ago)
  dmi.bios.date: 06/25/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6DET55WW (3.05 )
  dmi.board.name: 7465CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr6DET55WW(3.05):bd06/25/2009:svnLENOVO:pn7465CTO:pvrThinkPadX200s:rvnLENOVO:rn7465CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 7465CTO
  dmi.product.version: ThinkPad X200s
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.7.0+bzr3035-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.30-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.1-0ubuntu5
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.1-0ubuntu5
  version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu6
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

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