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[Bug 1512482] Re: Keyboard and touchpad malfunctioning on Thinkpad Twist


Matteo Dell'Amico, as per http://support.lenovo.com/us/en/products
s230u/3347/4hu an update to your computer's buggy and outdated BIOS is
available (1.71). If you update to this following
https://help.ubuntu.com/community/BIOSUpdate does it address the issue?

If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

For more on BIOS updates and linux, please see

Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful.

Also, you don't have to create a new bug report.

Once the BIOS is updated, if the problem is still reproducible, and the
information above is provided, then please mark this report Status
Confirmed. Otherwise, please mark this as Invalid.

Thank you for your understanding.

** Tags added: kernel-bug-exists-upstream kernel-bug-exists-upstream-4.3

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  Keyboard and touchpad malfunctioning on Thinkpad Twist

Status in linux package in Ubuntu:

Bug description:
  I don't know if this is really a kernel bug or if it's any other
  component, please help me know how I can diagnose the problem better.

  This is a bug I have been experiencing with both 15.04 and 15.10,
  while this was not a problem with earlier distributions --
  unfortunately, I don't remember which one in particular was actually

  I have a Thinkpad Twist -- a hybrid laptop with touchscreen. The
  touchpad almost never works (even though sometimes, erratically, it
  does). The keyboard sometimes stops working, and works again after a
  suspend/resume cycle. Sometimes it behaves as if a key is stuck.

  When running xinput --list, I don't see the touchpad. The touchscreen
  and external input devices connected via USB, however, work fine.

  I was thinking this was a hardware problem, but on the same machine
  with Windows the problem does not appear to present itself.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-17-generic 4.2.0-17.21
  ProcVersionSignature: Ubuntu 4.2.0-17.21-generic 4.2.3
  Uname: Linux 4.2.0-17-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: amd64
   /dev/snd/controlC0:  della      1684 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Nov  2 21:39:42 2015
  HibernationDevice: RESUME=UUID=38d3eec5-87ea-4477-bd19-d975ac2fca22
  InstallationDate: Installed on 2013-10-05 (758 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Beta amd64 (20130925.1)
  MachineType: LENOVO 33474HU
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-17-generic root=UUID=907c2dfa-5b96-4857-a1e7-6b59406e9721 ro quiet splash vt.handoff=7
   linux-restricted-modules-4.2.0-17-generic N/A
   linux-backports-modules-4.2.0-17-generic  N/A
   linux-firmware                            1.149.1
  SourcePackage: linux
  UpgradeStatus: Upgraded to wily on 2015-11-01 (0 days ago)
  dmi.bios.date: 12/15/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GDETA9WW (1.69 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 33474HU
  dmi.board.vendor: LENOVO
  dmi.board.version: Win8 STD 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:bvrGDETA9WW(1.69):bd12/15/2014:svnLENOVO:pn33474HU:pvrThinkPadTwist:rvnLENOVO:rn33474HU:rvrWin8STDDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 33474HU
  dmi.product.version: ThinkPad Twist
  dmi.sys.vendor: LENOVO

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