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[Bug 1398597] Re: ideapad yoga needs psmouse reload


I have updated my firmware, that doesn't change anything wrt this
touchpad bug.

$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Reading the diff, between the identified changes i'm sure that we will
bisect down to the patches that refactor and change things in the
synaptics driver.

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  ideapad yoga needs psmouse reload

Status in linux package in Ubuntu:

Bug description:
  So, my often made fun of, lenovo ideapad yoga, since sometime in the
  14.10 development cycle needs an extra help to get the trackpad

  On boot the mouse pointer is not visible.

  If I open terminal and do "rmmod psmouse; modprobe psmouse" the
  pointer magically appears on first touch.

  Please help me as to how I can bisect / track down what the issue here
  is. Sometime in the past it was working reliably.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.16.0-25-generic 3.16.0-25.33
  ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
  Uname: Linux 3.16.0-25-generic x86_64
  ApportVersion: 2.14.7-0ubuntu10
  Architecture: amd64
   /dev/snd/controlC0:  xnox       3161 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Dec  2 22:49:55 2014
  HibernationDevice: RESUME=UUID=eee95b80-dde2-400c-bb49-e5f515c9242a
  InstallationDate: Installed on 2013-08-29 (460 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130829)
  MachineType: LENOVO 2191
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-25-generic.efi.signed root=UUID=5c176060-d588-4044-87b6-50b785b931b1 ro quiet splash nomdmonddf nomdmonisw crashkernel=384M-:128M nomdmonddf nomdmonisw crashkernel=384M-:128M nomdmonddf nomdmonisw crashkernel=384M-:128M nomdmonddf nomdmonisw crashkernel=384M-:128M nomdmonddf nomdmonisw crashkernel=384M-:128M vt.handoff=7
   linux-restricted-modules-3.16.0-25-generic N/A
   linux-backports-modules-3.16.0-25-generic  N/A
   linux-firmware                             1.138
  SourcePackage: linux
  UpgradeStatus: Upgraded to vivid on 2014-11-16 (15 days ago)
  dmi.bios.date: 01/21/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 66CN54WW
  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:bvr66CN54WW:bd01/21/2013:svnLENOVO:pn2191:pvrLenovoIdeaPadYoga13:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadYoga13:
  dmi.product.name: 2191
  dmi.product.version: Lenovo IdeaPad Yoga 13
  dmi.sys.vendor: LENOVO

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