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[Jeff Miller <jefferym@xxxxxxxxx>]

This did not start happening after an upgrade. I have only tested this
15.04 and the 14.04 versions of ubuntu and they exhibit the issue. I
have not tested or used other versions of ubuntu.

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https://bugs.launchpad.net/bugs/1467691

Title:
   [HP Compaq dc7800p Small Form Factor PC] suspend/resume failure

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  To reproduce this bug I go to the shell as root and execute pm-suspend.
  Suspend to RAM fails to wake up on my HP dc7800p. After suspending with pm-suspend an attempt to wake the machine up with the power button leads to a black screen. The video card does not appear to show any activity to my monitor. I must hold the power button down for 6 seconds to power off and boot the system back up.

  This system is using the on-board intel graphics. If I put an nvidia
  card into the machine it is able to suspend and resume without issue.

  I have observed that if I pm-hibernate and resume from that
  hibernation the system is able to pm-suspend resume successfully.

  I tested this but exists in an Ubuntu 14.04 installation. I have not
  tested or used it with older distributions.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-21-generic 3.19.0-21.21
  ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
  Uname: Linux 3.19.0-21-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jam        1272 F.... pulseaudio
  Date: Mon Jun 22 18:15:33 2015
  HibernationDevice: RESUME=UUID=142d4858-0a51-4f73-9a46-59d8983563fa
  InstallationDate: Installed on 2015-06-18 (4 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  IwConfig:
   eth0      no wireless extensions.

   lo        no wireless extensions.
  MachineType: Hewlett-Packard HP Compaq dc7800p Small Form Factor
  ProcEnviron:
   LANGUAGE=en_US
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-21-generic root=UUID=340b9404-d245-4c5f-b10a-bc2a2d4a5a9d ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-21-generic N/A
   linux-backports-modules-3.19.0-21-generic  N/A
   linux-firmware                             1.143.1
  RfKill:

  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/21/2011
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 786F1 v01.32
  dmi.board.name: 0AA8h
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.type: 4
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr786F1v01.32:bd07/21/2011:svnHewlett-Packard:pnHPCompaqdc7800pSmallFormFactor:pvr:rvnHewlett-Packard:rn0AA8h:rvr:cvnHewlett-Packard:ct4:cvr:
  dmi.product.name: HP Compaq dc7800p Small Form Factor
  dmi.sys.vendor: Hewlett-Packard

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