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[Andrea Azzarone <1159404@xxxxxxxxxxxxxxxxxx>]

Ubuntu 12.10 reached end-of-life so it's no longer supported. Can you
still reproduce this bug on 14.04 (or laters)?

** Changed in: unity
       Status: New => Incomplete

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

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https://bugs.launchpad.net/bugs/1159404

Title:
  System completely inaccessible after suspend/resume if the only
  enabled screen is no longer available

Status in Unity:
  Incomplete
Status in unity package in Ubuntu:
  Incomplete

Bug description:
  Steps to reproduce:
  - connect an external monitor to a laptop
  - enable only the external monitor and disable the laptop's builtin monitor, as in: disper -S
  - suspend
  - disconnect the external monitor and take your laptop to another place
  - resume from suspend, ready to resume working happily with all your unsaved data

  Expected behavior:
  - on resume, the system should detect that the only screen that was enabled is no longer available, and that the only available screen is the builtin one, so it should enable it.

  Observed behavior:
  - the builtin screen is still disabled, so you have no usable screen. Everything is probably there and working, but you can't see anything, so you can't even switch screen back to enable the builtin screen

  As a workaround I've tried Ctrl+Alt+F1 to access a virtual terninal,
  and it works, but I don't know of any command that can be executed
  from the virtual terminal that would force xorg to switch screen.
  "disper -s" doesn't work if run from the virtual terminal.

  So the only option you have is to kill Xorg or reboot, loosing in both
  cases all unsaved data.

  Unless you can manage your system blindly, and manage to switch screen
  without seing what you're doing.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: unity 6.12.0-0ubuntu0.2
  ProcVersionSignature: Ubuntu 3.5.0-26.42-generic 3.5.7.6
  Uname: Linux 3.5.0-26-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.6.1-0ubuntu10
  Architecture: i386
  CompizPlugins: [core,composite,opengl,decor,vpswitch,mousepoll,compiztoolbox,snap,commands,place,resize,session,regex,grid,wall,move,gnomecompat,imgpng,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
  Date: Sun Mar 24 13:22:59 2013
  InstallationDate: Installed on 2010-06-23 (1005 days ago)
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: unity
  UpgradeStatus: Upgraded to quantal on 2013-01-13 (70 days ago)

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