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[Launchpad Bug Tracker <1494484@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1494484

Title:
  Black screen on resume after suspend

Status in linux package in Ubuntu:
  Expired

Bug description:
  I have an Acer V5-573G which fails to resume from suspend for all
  kernels past 3.14.51 (I've tested 4.2.0-040200 and it still doesn't
  resume). When attempting to resume, the hard drive spins up, the
  keyboard backlight turns on, the suspend light goes from orange to
  blue, but the screen stays resolutely black and the only keypress it
  seems to recognise is alt-sysrq-b.

  I think this is a duplicate of
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1416557 (where
  I've left more information) and
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1429347 and
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1389202.

  I suspect that the resume problem has something to do with the changes
  made in https://01.org/suspendresume/blogs/tebrandt/2013/hard-disk-
  resume-optimization-simpler-approach. These were made between 3.14.51
  and 3.15.0-RC1, I think.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-28-generic 3.19.0-28.30
  ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5
  Uname: Linux 3.19.0-28-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  seker      1610 F.... pulseaudio
   /dev/snd/controlC0:  seker      1610 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Thu Sep 10 21:41:18 2015
  HibernationDevice: RESUME=UUID=33d0d78a-8c1f-4609-87d8-c2ddb40e0f14
  InstallationDate: Installed on 2015-03-15 (179 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20150306)
  MachineType: Acer Aspire V5-573G
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-28-generic root=UUID=caf564a7-8259-4d5f-aeb7-10d2e2de6971 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-28-generic N/A
   linux-backports-modules-3.19.0-28-generic  N/A
   linux-firmware                             1.143.3
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/12/2015
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V2.30
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: Dazzle_HW
  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.:bvrV2.30:bd01/12/2015:svnAcer:pnAspireV5-573G:pvrTBDbyOEM:rvnAcer:rnDazzle_HW:rvrType2-A01BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
  dmi.product.name: Aspire V5-573G
  dmi.product.version: TBD by OEM
  dmi.sys.vendor: Acer

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