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[Jan van de Wijdeven <1552216@xxxxxxxxxxxxxxxxxx>]

There is no sticker on the computer, but my order says "HP Star Wars
Special Edition laptop 15-AN000ND". The SKU number is P4A01EA#ABH.

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https://bugs.launchpad.net/bugs/1552216

Title:
  Laptop hangs during second time it suspends

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  When I want to suspend my computer for the second time it hangs. It
  does not react to any keyboard input or the power button. The only way
  to recover is to hold the power button several seconds to reboot the
  computer.

  I followed the procedure mentioned at
  https://wiki.ubuntu.com/DebuggingKernelSuspend. To reproduce I first
  completely suspend the laptop, e.g. by closing the lid or by using the
  pm-suspend command. After wakeup from suspend I start following the
  procedure. At the step where the command "echo devices >
  /sys/power/pm_test" is given the laptop hangs during suspend. It does
  not reach suspended state, as the power remains on. On reboot, the
  Magic number says: "memory memory48: hash matches"

  I have a HP Pavilion 15 laptop with an Intel Skylake processor. I have experienced this on kernel 4.2.0 (Ubuntu 4.2.0-30.35-generic 4.2.8-ckt3), but also on kernels 4.4.1 an 4.4.3 (taken from mainline kernel release). After installation of 15.10 I made the following changes for hardware support:
  - I installed rtlwifi-new-dkms from http://ppa.launchpad.net/hanipouspilot/rtlwifi/ubuntu/. This has support for antenna selection which my wifi requires (auto selection does not work, I use parameter ant_sel for module rtl8723be)
  - I installed nvidia-352-updates and bumblebee to support the graphics card
  - I use kernel parameter pci=noaer to avoid dmesg being flooded with the same message (see bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1521173)

  I upgraded to the latest BIOS.

  One thing I noticed is that there is a difference between before the first suspend and after the first suspend to the contents of cat /proc/acpi/wakeup > wakeup.
  After the boot, and before the first suspend this line is reported:
  PXSX      S5    *disabled  pci:0000:04:00.0
  After the first suspend and resume this line becomes:
  PXSX    S5    *enabled   pci:0000:04:00.0

  If I read lspci correctly device 0000:04:00.0 is "Signal processing
  controller [1180]: Intel Corporation Device [8086:1903] (rev 08)"

  Thanks for looking into this.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-30-generic 4.2.0-30.35
  ProcVersionSignature: Ubuntu 4.2.0-30.35-generic 4.2.8-ckt3
  Uname: Linux 4.2.0-30-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jan        4087 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Wed Mar  2 13:12:42 2016
  HibernationDevice: RESUME=UUID=321acbbf-9a6a-4825-8f47-a89d56536272
  InstallationDate: Installed on 2016-02-03 (27 days ago)
  InstallationMedia: Error: [Errno 13] Permission denied: '/var/log/installer/media-info'
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 0bda:b006 Realtek Semiconductor Corp.
   Bus 001 Device 002: ID 0bda:57eb Realtek Semiconductor Corp.
   Bus 001 Device 006: ID 0461:4d03 Primax Electronics, Ltd Kensington Mouse-in-a-box
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: HP HP Pavilion Notebook
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-30-generic.efi.signed root=UUID=43cbb8c2-c0ce-40e2-a795-3a506e63d450 ro quiet splash pci=noaer vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-30-generic N/A
   linux-backports-modules-4.2.0-30-generic  N/A
   linux-firmware                            1.156
  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: 12/18/2015
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.77
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: 80A4
  dmi.board.vendor: HP
  dmi.board.version: 91.1C
  dmi.chassis.type: 10
  dmi.chassis.vendor: HP
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnInsyde:bvrF.77:bd12/18/2015:svnHP:pnHPPavilionNotebook:pvrType1ProductConfigId:rvnHP:rn80A4:rvr91.1C:cvnHP:ct10:cvrChassisVersion:
  dmi.product.name: HP Pavilion Notebook
  dmi.product.version: Type1ProductConfigId
  dmi.sys.vendor: HP

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