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[vak <1291258@xxxxxxxxxxxxxxxxxx>]

Please, re-open this annoying bug. BIOS update is available only for
some regions/submodels of Yoga Lenovo! The bug is recurring after distro
upgrades and then gets fixed by some other updates coming after in 2-3
months. It means, the bug indeed could be fixed without BIOS update.

Now this bug is again here after upgrade to 16.04 LTS.

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https://bugs.launchpad.net/bugs/1291258

Title:
  [Lenovo IdeaPad Yoga 13] Stuck keys

Status in linux package in Ubuntu:
  Invalid

Bug description:
  On the Lenovo Yoga 13 some keys, when being held down, are not
  released (e.g. pagedn, up arrow, etc.).  Once this happens, the mouse
  cursor also starts scrolling in some or other direction (it can be
  moved with the track-pad, but keeps moving in that direction).

  Using an external keyboard fixes the problem.

  At startup, the keyboard complains about unknown key events, but I
  silence those using

  sudo setkeycodes e03e 255
  sudo setkeycodes e060 255

  The behavior described here happens irrespective of whether these
  commands were executed.

  My temporary work-around is to put the machine to sleep; after wakeup
  the keyboard works fine again.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: xorg 1:7.7+1ubuntu6
  ProcVersionSignature: Ubuntu 3.11.0-17.31-generic 3.11.10.3
  Uname: Linux 3.11.0-17-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  Date: Wed Mar 12 11:31:26 2014
  DistUpgraded: 2013-10-07 10:49:38,779 DEBUG enabling apt cron job
  DistroCodename: saucy
  DistroVariant: ubuntu
  DkmsStatus:
   virtualbox, 4.2.16, 3.11.0-14-generic, x86_64: installed
   virtualbox, 4.2.16, 3.11.0-17-generic, x86_64: installed
   virtualbox, 4.2.16, 3.11.0-18-generic, x86_64: installed
   virtualbox, 4.2.16, 3.9.0-030900rc8-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:3977]
  InstallationDate: Installed on 2012-12-20 (447 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: LENOVO 20175
  MarkForUpload: True
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-17-generic.efi.signed root=UUID=2e1ac93a-5830-41a4-b189-27ac85d8f5a7 ro quiet splash acpi_backlight=vendor vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: Upgraded to saucy on 2013-10-07 (156 days ago)
  dmi.bios.date: 10/19/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 66CN51WW
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: INVALID
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900003WIN8 STD MLT
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo IdeaPad Yoga 13
  dmi.modalias: dmi:bvnLENOVO:bvr66CN51WW:bd10/19/2012:svnLENOVO:pn20175:pvrLenovoIdeaPadYoga13:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadYoga13:
  dmi.product.name: 20175
  dmi.product.version: Lenovo IdeaPad Yoga 13
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1
  version.ia32-libs: ia32-libs 20090808ubuntu36
  version.libdrm2: libdrm2 2.4.46-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.2.1-1ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.2.1-1ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.14.5-1ubuntu2~saucy1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.904-0ubuntu2.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1

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