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["Oliver A." <oa24816@xxxxxxxxx>]

Looks like I have the same problem on a Sony Vaio SVP132A1CL,
ubuntustudio 14.04.3 LTS.

# uname -a:
Linux abc 3.16.0-53-lowlatency #72~14.04.1-Ubuntu SMP PREEMPT Fri Nov 6 19:22:01 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

# while : ; do cat /proc/acpi/button/lid/LID0/state ; sleep 1; done
state:      open
state:      open
state:      closed
state:      open

# dmesg | grep -i lid:
[    0.681415] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0
[    0.681712] ACPI: Lid Switch [LID0]

# acpid -ldd:
Deprecated /proc/acpi/event was not found.  Trying netlink and the input layer...
input layer /dev/input/event0 (Lid Switch) opened successfully, fd 4
input layer /dev/input/event1 (Power Button) opened successfully, fd 5
acpid: waiting for events: event logging is on
acpid: received input layer event "button/power PBTN 00000080 00000000"
[closing lid does nothing]

Interestingly, there are no other buttons defined in /proc/acpi/button/.
There doesn't seem to be any activity on /dev/input/event0.

Workaround to lock screen on lid close (run in Settings manager/Session
and start-up/Application Autostart):

#!/bin/sh
while :
do
	while grep -q close /proc/acpi/button/lid/LID0/state
		do sleep 5; done
	#echo "close->open"
	while grep -q open /proc/acpi/button/lid/LID0/state
		do sleep 1; done
	#echo "open->close"
	xflock4
done

Hope this helps.

-- 
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https://bugs.launchpad.net/bugs/1010926

Title:
  HP Folio 13: Lid close event is never fired => no suspend on lid close

Status in linux package in Ubuntu:
  Triaged

Bug description:
  The machine is an HP Folio 13 notebook.
  The state of the lid is correctly reported in /proc:

  With lid open:
  gpothier@tadzim2:~$ cat /proc/acpi/button/lid/*/state
  state:      open

  With lid closed:
  gpothier@tadzim2:~$ cat /proc/acpi/button/lid/*/state
  state:      closed

  The events are never fired however. This is the output of acpi_listen
  after hitting the power button (just to check that some acpi events
  are indeed fired):

  gpothier@tadzim2:~$ acpi_listen 
  button/power PWRF 00000080 00000001
  video GFX0 00000080 00000000
  button/lid LID0 00000080 00000001

  But when closing/opening the lid, nothing happens. This prevents the
  suspend on lid close feature to work.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-24-generic 3.2.0-24.39
  ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
  Uname: Linux 3.2.0-24-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/hwC0D3', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xc2700000 irq 50'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:111d76e5,103c17f8,00100102 HDA:80862805,80860101,00100000'
     Controls      : 22
     Simple ctrls  : 10
  Date: Sat Jun  9 11:45:19 2012
  HibernationDevice: RESUME=UUID=cb1ceaaa-6de7-42c5-a842-50edef2af7c3
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: Hewlett-Packard HP Folio 13 Notebook PCC
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=acdbf868-560a-4ec7-8772-45c16c166819 ro acpi_backlight=vendor quiet splash vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-24-generic N/A
   linux-backports-modules-3.2.0-24-generic  N/A
   linux-firmware                            1.79
  SourcePackage: linux
  StagingDrivers: rts_pstor mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/05/2012
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.06
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 17F8
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 46.34
  dmi.chassis.asset.tag: Chassis Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.06:bd03/05/2012:svnHewlett-Packard:pnHPFolio13NotebookPCC:pvr068C100000204A00000320100:rvnHewlett-Packard:rn17F8:rvr46.34:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP Folio 13 Notebook PCC
  dmi.product.version: 068C100000204A00000320100
  dmi.sys.vendor: Hewlett-Packard

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