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[Alex Hung <1457852@xxxxxxxxxxxxxxxxxx>]

Let's check with Dell and see whether we can get BIOS update...

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https://bugs.launchpad.net/bugs/1457852

Title:
  [Dell Optiplex 9020] Shut down causes restart if USB3 enabled

Status in linux package in Ubuntu:
  Triaged

Bug description:
  Description:    Ubuntu 14.04.2 LTS
  Release:        14.04

  linux-image-3.13.0-49-generic version 3.13.0-49.83

  I have a large number of Dell Optiplex 9020 machines, and when they
  are asked to shutdown with e.g. shutdown -h now, they shut down
  successfully and then approximately four seconds later they start up
  again.

  This problem only happens if the system's USB3 ports are enabled.

  If I reinstate the code removed from xhci-pci.c in the diff.gz:

          if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
  -           (pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI ||
  -            pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI)) {
  -               /* Workaround for occasional spurious wakeups from S5 (or
  -                * any other sleep) on Haswell machines with LPT and LPT-LP
  -                * with the new Intel BIOS
  -                */
  -               /* Limit the quirk to only known vendors, as this triggers
  -                * yet another BIOS bug on some other machines
  -                * https://bugzilla.kernel.org/show_bug.cgi?id=66171
  -                */
  -               if (pdev->subsystem_vendor == PCI_VENDOR_ID_HP)
  -                       xhci->quirks |= XHCI_SPURIOUS_WAKEUP;
  +               pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI) {
  +               xhci->quirks |= XHCI_SPURIOUS_REBOOT;
          }

  and add msleep(1000) to xhci.c as suggested at http://www.gossamer-
  threads.com/lists/linux/kernel/1713011

  ...shutdown shuts the machine down as expected.

  I attach the output of lspci -mnn.

  (S)
  --- 
  ApportVersion: 2.14.1-0ubuntu3.10
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  lightdm    1990 F.... pulseaudio
   /dev/snd/controlC0:  lightdm    1990 F.... pulseaudio
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=/dev/mapper/CayenneSys00-swap
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: Dell Inc. OptiPlex 9020
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-49-generic root=/dev/mapper/CayenneSys00-root ro biosdevname=0 quiet
  ProcVersionSignature: Ubuntu 3.13.0-49.83-generic 3.13.11-ckt17
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-49-generic N/A
   linux-backports-modules-3.13.0-49-generic  N/A
   linux-firmware                             1.127.11
  RfKill:
   
  Tags:  trusty
  Uname: Linux 3.13.0-49-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: wheel
  _MarkForUpload: True
  dmi.bios.date: 11/20/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A09
  dmi.board.name: 06X1TJ
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 6
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA09:bd11/20/2014:svnDellInc.:pnOptiPlex9020:pvr01:rvnDellInc.:rn06X1TJ:rvrA00:cvnDellInc.:ct6:cvr:
  dmi.product.name: OptiPlex 9020
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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