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[Tudor Holton <1472478@xxxxxxxxxxxxxxxxxx>]

I upgraded to linux-image-3.19.0-22 but this issue still occurs.

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Title:
  Power button not working on Dell Venue 11 Pro 7140

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  When pressing the power button on the Dell Venue 11 Pro 7140 there is
  no reaction. dmesg and showkey are not detecting any key event when
  pressing the power button.

  This is identical to the RedHat bug report:
  https://bugzilla.redhat.com/show_bug.cgi?id=1194632

  Here are my details:
  $sudo evtest /dev/input/event1
  Input driver version is 1.0.1
  Input device ID: bus 0x19 vendor 0x0 product 0x1 version 0x0
  Input device name: "Power Button"
  Supported events:
    Event type 0 (EV_SYN)
    Event type 1 (EV_KEY)
      Event code 116 (KEY_POWER)
  Properties:
  Testing ... (interrupt to exit)

  [Pressing button gives no output]

  $cat /sys/firmware/acpi/interrupts/ff_pwr_btn
         0   invalid

  I've attached the acpidata.dat file as well as the minimum
  requirements.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-generic (not installed)
  ProcVersionSignature: Ubuntu 3.16.0-43.58-generic 3.16.7-ckt13
  Uname: Linux 3.16.0-43-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  tudor      1763 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Jul  8 14:19:01 2015
  HibernationDevice: RESUME=UUID=3acb1340-1be5-453c-a918-25f6b6ff404e
  InstallationDate: Installed on 2015-07-06 (1 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 005: ID 8087:0a2a Intel Corp. 
   Bus 001 Device 004: ID 114d:1002 Alpha Imaging Technology Corp. 
   Bus 001 Device 003: ID 0bda:5757 Realtek Semiconductor Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. Venue 11 Pro 7140
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-43-generic root=UUID=f0dc97e1-7d1c-4d05-a7d8-3cfc8551bdc4 ro quiet splash i915.i915_enable_rc6=1 vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-43-generic N/A
   linux-backports-modules-3.16.0-43-generic  N/A
   linux-firmware                             1.143.1
  SourcePackage: linux
  UpgradeStatus: Upgraded to vivid on 2015-07-07 (0 days ago)
  dmi.bios.date: 06/30/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A07
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA07:bd06/30/2015:svnDellInc.:pnVenue11Pro7140:pvr01:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Venue 11 Pro 7140
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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