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[Andrea Azzarone <1307118@xxxxxxxxxxxxxxxxxx>]

Yeah can you confirm that tty switching is not working?

** Tags added: lockscreen

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

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

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https://bugs.launchpad.net/bugs/1307118

Title:
  Unity freezes on resuming from suspend

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

Bug description:
  After suspending laptop (by closing the laptop screen) and then
  resuming, the screen is black and doesn't seem to take any keyboard or
  mouse input. As a result, the only way to fix the situation is to hard
  reboot the system.

  Steps to reproduce:
  1. Suspend laptop
  2. Wait for at least 10-15 minutes
  3. Try resuming

  What happens:
  Black screen with the mouse cursor visible. However the whole screen is frozen. No keyboard or mouse input is accepted. As a result, I cannot switch to any vt to reboot or restart the lightdm process

  What should happen:
  Unity lockscreen is shown where one can enter the password and return to the user session

  gnome-screensaver: 3.6.1-0ubuntu13 amd64 [Installed]

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: unity 7.2.0+14.04.20140411-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  .tmp.unity.support.test.0:

  ApportVersion: 2.14.1-0ubuntu2
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Sun Apr 13 13:56:56 2014
  DistUpgraded: 2014-02-27 11:46:48,360 DEBUG enabling apt cron job
  DistroCodename: trusty
  DistroVariant: ubuntu
  GraphicsCard:
   Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:3801]
   NVIDIA Corporation GK107M [GeForce GT 755M] [10de:0fcd] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:3801]
  InstallationDate: Installed on 2013-09-18 (207 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130802)
  MachineType: LENOVO 20217
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=63532c2e-8584-466e-8215-2d6770489a00 ro quiet splash vt.handoff=7
  SourcePackage: unity
  UpgradeStatus: Upgraded to trusty on 2014-02-27 (45 days ago)
  dmi.bios.date: 06/04/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 74CN32WW(V2.02)
  dmi.board.asset.tag: YB00228460
  dmi.board.name: 20217
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900003WIN8 STD MLT
  dmi.chassis.asset.tag: YB00228460
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo IdeaPad Y510P
  dmi.modalias: dmi:bvnLENOVO:bvr74CN32WW(V2.02):bd06/04/2013:svnLENOVO:pn20217:pvrLenovoIdeaPadY510P:rvnLENOVO:rn20217:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadY510P:
  dmi.product.name: 20217
  dmi.product.version: Lenovo IdeaPad Y510P
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.11+14.04.20140409-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu4
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu4
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Sun Apr 13 13:51:07 2014
  xserver.configfile: default
  xserver.errors:
   Failed to load module "nvidia" (module does not exist, 0)
   Failed to load module "nvidia" (module does not exist, 0)
   NOUVEAU(G0): Failed to initialise context object: 2D_NVC0 (0)
   NOUVEAU(G0): Error initialising acceleration.  Falling back to NoAccel
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                 489
   vendor                                     LGD
  xserver.version: 2:1.15.0-1ubuntu7

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