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[saguti <saguti@xxxxxxxxx>]

** Attachment added: "dmesg-after-devices.txt"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1576909/+attachment/4680680/+files/dmesg-after-devices.txt

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https://bugs.launchpad.net/bugs/1576909

Title:
  Suspend not working on Ubuntu 16.04

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I am running Ubuntu 16.04 on an Acer Aspire V3-472G with Nvidia
  Geforce 840M graphic cards, proprietary driver.

  None of the options for suspend are working. The process of suspend
  works fine but when the computer is waken, screen stays black and
  computer becomes unresponsive.

  Installation of packets such as uswsusp create a bigger problem as the
  computer freezes during boot process.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-21-generic 4.4.0-21.37
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  saguti     2907 F.... pulseaudio
   /dev/snd/pcmC1D0p:   saguti     2907 F...m pulseaudio
   /dev/snd/controlC1:  saguti     2907 F.... pulseaudio
  Date: Fri Apr 29 21:42:27 2016
  HibernationDevice: RESUME=UUID=93ec1eec-dc0c-4ac4-9b06-b2d3cca2a8da
  InstallationDate: Installed on 2015-01-01 (484 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  Lsusb:
   Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 002 Device 004: ID 04f2:b469 Chicony Electronics Co., Ltd
   Bus 002 Device 005: ID 0489:e04e Foxconn / Hon Hai
   Bus 002 Device 002: ID 3938:1031
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Acer Aspire V3-472G
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-21-generic root=/dev/mapper/ubuntu--vg-root ro acpi_sleep=nonvs resume=/dev/dm-1
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-21-generic N/A
   linux-backports-modules-4.4.0-21-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-04-25 (4 days ago)
  dmi.bios.date: 09/24/2014
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V1.21
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: EA40_HB
  dmi.board.vendor: Acer
  dmi.board.version: Type2 - A01 Board Version
  dmi.chassis.type: 10
  dmi.chassis.vendor: Chassis Manufacturer
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.21:bd09/24/2014:svnAcer:pnAspireV3-472G:pvrTBDbyOEM:rvnAcer:rnEA40_HB:rvrType2-A01BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
  dmi.product.name: Aspire V3-472G
  dmi.product.version: TBD by OEM
  dmi.sys.vendor: Acer

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