I think this could be considered "confirmed", as I have already observed it on two different machines.
-- You received this bug notification because you are a member of DX Packages, which is subscribed to unity in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/1159404 Title: System completely inaccessible after hibernate/resume if the only enabled screen is no longer available Status in Unity: New Status in unity package in Ubuntu: New Bug description: Steps to reproduce: - connect an external monitor to a laptop - enable only the external monitor and disable the laptop's builtin monitor - hibernate - disconnect the external monitor and take your laptop to another place - resume from hibernation, 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. - if you do have the external screen available and re-connect it, then the screen will show up on the external monitor, but the system is frozen, unresponsive to keyboard and mouse input (and doesn't even react to connecting usb devices, I can tell because if I connect an external keyboard its leds won't turn on). The only way out is a hadrware power off. This is critical, as it causes data loss. Last reproduced on 14.04. 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) To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1159404/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp