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[mluser <1232528@xxxxxxxxxxxxxxxxxx>]

I have tested as requested with linux-image-3.12.0-999-generic_3.12.0-999.201309300405_amd64.deb.
Still no change with lid state as reported by cat /proc/acpi/button/lid/LID0/state
Please let me know if there is anything else you'd like me to test.

Thanks

** Tags added: kernel-bug-exists-upstream

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/1232528

Title:
  Samsung Series 9 NP900X4C-A04US lid state not detected in ubuntu
  13.10.

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  I have had no problems with suspend on laptop lid close for over a year, using 12.04.  But since my upgrade to 13.10 I no longer get any lid state messages.  
  cat /proc/acpi/button/lid/LID0/state
  always shows state: open.
  In 12.04 my keyboard backlight never worked, and now in 13.10 it does. I also used to be able to put the laptop to sleep by pressing the power button, but in 13.10 that is not working either.
  Everything else is working perfectly, except for the lid state changes.

  On my way to 13.10 from 12.04 I did upgrade to 13.04 and lid state
  change was working properly, but bluetooth was not, so I decided to
  try 13.10.  Bluetooth works fine now.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-9-generic 3.11.0-9.16
  ProcVersionSignature: Ubuntu 3.11.0-9.16-generic 3.11.2
  Uname: Linux 3.11.0-9-generic x86_64
  ApportVersion: 2.12.5-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mfindley   3886 F.... pulseaudio
  Date: Sat Sep 28 13:31:40 2013
  HibernationDevice: RESUME=UUID=650eddf4-538e-4897-b8c3-1117ce1a99a9
  InstallationDate: Installed on 2012-08-02 (422 days ago)
  InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120423)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 900X3C/900X3D/900X4C/900X4D
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-9-generic root=UUID=9bf87e9e-75f1-4d65-8778-7b8c4b98a31f ro crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-9-generic N/A
   linux-backports-modules-3.11.0-9-generic  N/A
   linux-firmware                            1.114
  SourcePackage: linux
  UpgradeStatus: Upgraded to saucy on 2013-09-15 (13 days ago)
  dmi.bios.date: 02/08/2013
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: P06AAC
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: SAMSUNG_NP1234567890
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP06AAC:bd02/08/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3C/900X3D/900X4C/900X4D:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 900X3C/900X3D/900X4C/900X4D
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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