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[Dark Dragon <darkdragon-001@xxxxxx>]

After some updates, it now works.

Probably it was the grub option to turn acpi on correctly.

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https://bugs.launchpad.net/bugs/1249801

Title:
  acpi events not fired correctly

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  On my Lenovo ThinkPad Twist (S230u) there is a screen rotate button
  (ibm/hotkey 0x6020).

  acpi_listen recognizes this event, dmesg also recognized it, but as
  "unknown" and /etc/acpi/events never get fired.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-13-generic 3.11.0-13.20
  ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6
  Uname: Linux 3.11.0-13-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mschnirring   2411 F.... pulseaudio
  Date: Sun Nov 10 17:18:49 2013
  InstallationDate: Installed on 2013-10-21 (19 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: LENOVO N3C29UK
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-13-generic.efi.signed root=UUID=57ca7e87-7c13-41ee-8f89-13f9e3fa6aa8 ro quiet splash "acpi_osi=!Windows 2012" vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-13-generic N/A
   linux-backports-modules-3.11.0-13-generic  N/A
   linux-firmware                             1.116
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/20/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GDET90WW (1.50 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: N3C29UK
  dmi.board.vendor: LENOVO
  dmi.board.version: Win8 Pro DPK TPG
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrGDET90WW(1.50):bd12/20/2012:svnLENOVO:pnN3C29UK:pvrThinkPadTwist:rvnLENOVO:rnN3C29UK:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: N3C29UK
  dmi.product.version: ThinkPad Twist
  dmi.sys.vendor: LENOVO

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