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[Alexey <aleksey.tyabin@xxxxxxxxx>]

I post workaround at askubuntu: http://askubuntu.com/questions/605563/ubuntu-14-10-issue-with-suspend?lq=1
So, problem is in nvidia driver

** Also affects: nvidia-graphics-drivers-340-updates (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1459451

Title:
  freeze after suspend

Status in nvidia-graphics-drivers-340-updates package in Ubuntu:
  New
Status in xorg package in Ubuntu:
  New

Bug description:
  Steps to reproduce:
  1) suspend
  2) try to wake up

  Frequency:
  Always

  I cannot switch between TTYs and i don't know whats wrong. I have only black screen with 2 prints:
  [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
  uncleared fifo underrun on pipe A
  [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
  pipe A FIFO underrun

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
  Uname: Linux 3.19.0-18-generic x86_64
  NonfreeKernelModules: nvidia wl
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86_64 Kernel Module  340.76  Thu Jan 22 12:11:08 PST 2015
   GCC version:  gcc version 4.9.2 (Ubuntu 4.9.2-10ubuntu13)
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu May 28 01:13:47 2015
  DistUpgraded: Fresh install
  DistroCodename: vivid
  DistroVariant: ubuntu
  DkmsStatus:
   bbswitch, 0.7, 3.19.0-18-generic, x86_64: installed
   bcmwl, 6.30.223.248+bdcom, 3.19.0-18-generic, x86_64: installed
   nvidia-340, 340.76, 3.19.0-18-generic, x86_64: installed
   virtualbox, 4.3.26, 3.19.0-18-generic, x86_64: installed
  EcryptfsInUse: Yes
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
     Subsystem: Acer Incorporated [ALI] Device [1025:0866]
     Subsystem: Acer Incorporated [ALI] GeForce 820M [1025:0868]
  InstallationDate: Installed on 2015-05-25 (2 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: Acer Aspire E5-571G
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-18-generic.efi.signed root=UUID=91d68de4-e180-4852-b16f-74026d53a17e ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  Title: Xorg freeze
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/16/2014
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V1.15
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: EA50_HB
  dmi.board.vendor: Acer
  dmi.board.version: V1.15
  dmi.chassis.asset.tag: Chassis Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.15:bd09/16/2014:svnAcer:pnAspireE5-571G:pvrV1.15:rvnAcer:rnEA50_HB:rvrV1.15:cvnAcer:ct10:cvrChassisVersion:
  dmi.product.name: Aspire E5-571G
  dmi.product.version: V1.15
  dmi.sys.vendor: Acer
  version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.60-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
  xserver.bootTime: Wed May 27 20:42:33 2015
  xserver.configfile: /etc/X11/xorg.conf
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               16876 
   vendor                                     AUO
  xserver.version: 2:1.17.1-0ubuntu3

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