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[Bug 1487334] Re: Touchpad tap-event support broken since kernel 3.19.0-25


Samuli Kauranne, as per
http://www.asus.com/Motherboards/MAXIMUS_VII_GENE/HelpDesk_Download/ an
update to your computer's buggy and outdated BIOS is available (2801).
If you update to this following
https://help.ubuntu.com/community/BIOSUpdate does it change anything?

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

Once the BIOS is updated, and the information above is provided, then
please mark this report Status Confirmed.

Thank you for your understanding.

** Tags added: bios-outdated-2801

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  Touchpad tap-event support broken since kernel 3.19.0-25

Status in linux package in Ubuntu:

Bug description:
  Release: Ubuntu 15.04
  Hardware:  Logitech TK820 wireless keyboard with touchpad

  I've been using the said hardware with ubuntu in all releases since
  13.10 without problems. All touchpad features were working fine until
  I received in 15.04 the automatic update to kernel version 3.19.0-22.
  This kernel introduced a condition in which, at times, the system
  started randomly registering keyboard input when pointing with the

  The original bug got apparently fixed in kernel version 3.19.0-25, but
  as a result this kernel version broke completely all tap-events for my
  touchpad. They are not registering at all. Pointing and scrolling
  work, so do the mechanical click-switches in the corners, but tapping
  or sweeping with one or more fingers does not get registered even
  though the settings were never touched. I now got kernel update to
  3.19.0-26, but the bug persists in this version, too.

  At the moment I had to revert back to kernel version 3.19.0-16 in order to be able to use my touchpad normally.
  ApportVersion: 2.17.2-0ubuntu1.4
  Architecture: amd64
   /dev/snd/controlC0:  samuli     1172 F.... pulseaudio
   /dev/snd/controlC1:  samuli     1172 F.... pulseaudio
  CurrentDesktop: X-Cinnamon
  DistroRelease: Ubuntu 15.04
  HibernationDevice: RESUME=UUID=caec55c5-801b-4ddb-81bf-ab7d116a7c9e
  InstallationDate: Installed on 2014-06-24 (449 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
   eth1      no wireless extensions.
   lo        no wireless extensions.
  MachineType: ASUS All Series
  Package: linux (not installed)
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-25-generic root=UUID=3f007092-6b41-4366-b197-b265d0225a0e ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-25.26-generic 3.19.8-ckt2
   linux-restricted-modules-3.19.0-25-generic N/A
   linux-backports-modules-3.19.0-25-generic  N/A
   linux-firmware                             1.143.3
  Tags:  vivid
  Uname: Linux 3.19.0-25-generic x86_64
  UpgradeStatus: Upgraded to vivid on 2015-04-24 (145 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare samuli2 sudo
  _MarkForUpload: True
  dmi.bios.date: 05/16/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0506
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: MAXIMUS VII GENE
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0506:bd05/16/2014:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnMAXIMUSVIIGENE:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: All Series
  dmi.product.version: System Version
  dmi.sys.vendor: ASUS

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