Hi,

With linux-image-4.4.0-56-generic 4.4.0-56.77~lp1662589Commit6909b9d008
the trackpad is NOT working correctly.

Thanks.

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https://bugs.launchpad.net/bugs/1662589

Title:
  Touchpad not working correctly after kernel upgrade

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Xenial:
  In Progress

Bug description:
  Since the kernel upgraded from 4.4.0-31-generic the touchpad on my
  Toshiba Tecra laptop has not been functioning correctly.

  Whenever I try and do two finger srcolling it also thinks I'm doing a
  two finger tap to to rightclick, making two finger scrolling almost
  impossible.

  It is the same for both kernel updates since 4.4.0-31.  If I boot from
  4.4.0-31 then the touchpad works fine.

  If I do an xinput in the later kernels it shows :-
  ⎡ Virtual core pointer                        id=2    [master pointer  (3)]
  ⎜   ↳ Virtual core XTEST pointer                      id=4    [slave  pointer 
 (2)]
  ⎜   ↳ Microsoft Wired Keyboard 600                    id=10   [slave  pointer 
 (2)]
  ⎜   ↳ Microsoft Comfort Mouse 6000                    id=11   [slave  pointer 
 (2)]
  ⎜   ↳ AlpsPS/2 ALPS DualPoint Stick                   id=15   [slave  pointer 
 (2)]
  ⎜   ↳ AlpsPS/2 ALPS DualPoint TouchPad                id=14   [slave  pointer 
 (2)]
  ⎣ Virtual core keyboard                       id=3    [master keyboard (2)]
      ↳ Virtual core XTEST keyboard                     id=5    [slave  
keyboard (3)]
      ↳ Power Button                                    id=6    [slave  
keyboard (3)]
      ↳ Video Bus                                       id=7    [slave  
keyboard (3)]
      ↳ Power Button                                    id=8    [slave  
keyboard (3)]
      ↳ Microsoft Wired Keyboard 600                    id=9    [slave  
keyboard (3)]
      ↳ TOSHIBA Web Camera - FHD                        id=12   [slave  
keyboard (3)]
      ↳ AT Translated Set 2 keyboard                    id=13   [slave  
keyboard (3)]
      ↳ Toshiba input device  

  
  The AlpsPS/2 devices aren't aren't present when booting with 4.4.0.31:

  ⎡ Virtual core pointer                        id=2    [master pointer  (3)]
  ⎜   ↳ Virtual core XTEST pointer                      id=4    [slave  pointer 
 (2)]
  ⎜   ↳ Microsoft Wired Keyboard 600                    id=10   [slave  pointer 
 (2)]
  ⎜   ↳ Microsoft Comfort Mouse 6000                    id=11   [slave  pointer 
 (2)]
  ⎜   ↳ ImPS/2 Generic Wheel Mouse              id=14   [slave  pointer  (2)]
  ⎣ Virtual core keyboard                       id=3    [master keyboard (2)]
      ↳ Virtual core XTEST keyboard                     id=5    [slave  
keyboard (3)]
      ↳ Power Button                                    id=6    [slave  
keyboard (3)]
      ↳ Video Bus                                       id=7    [slave  
keyboard (3)]
      ↳ Power Button                                    id=8    [slave  
keyboard (3)]
      ↳ Microsoft Wired Keyboard 600                    id=9    [slave  
keyboard (3)]
      ↳ TOSHIBA Web Camera - FHD                        id=12   [slave  
keyboard (3)]
      ↳ AT Translated Set 2 keyboard                    id=13   [slave  
keyboard (3)]
      ↳ Toshiba input device                            id=15 [slave  keyboard 
(3)]

  Any ideas?

  Thanks.
  --- 
  ApportVersion: 2.20.1-0ubuntu2.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  nick       1867 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=5f888cc2-be17-45fe-9b4c-c8cf49eb1db8
  InstallationDate: Installed on 2017-02-03 (4 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  MachineType: TOSHIBA TECRA A40-C
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-62-generic.efi.signed 
root=UUID=7c18c2ca-0cc6-4c2c-80ba-194bbbc22646 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.4.0-62.83-generic 4.4.40
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-62-generic N/A
   linux-backports-modules-4.4.0-62-generic  N/A
   linux-firmware                            1.157.6
  Tags:  xenial xenial
  Uname: Linux 4.4.0-62-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 07/12/2016
  dmi.bios.vendor: TOSHIBA
  dmi.bios.version: Version 7.40
  dmi.board.asset.tag: 0000000000
  dmi.board.name: TECRA A40-C
  dmi.board.vendor: TOSHIBA
  dmi.board.version: Version A0
  dmi.chassis.asset.tag: 0000000000
  dmi.chassis.type: 10
  dmi.chassis.vendor: TOSHIBA
  dmi.chassis.version: Version 1.0
  dmi.modalias: 
dmi:bvnTOSHIBA:bvrVersion7.40:bd07/12/2016:svnTOSHIBA:pnTECRAA40-C:pvrPS463E-01C003EN:rvnTOSHIBA:rnTECRAA40-C:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0:
  dmi.product.name: TECRA A40-C
  dmi.product.version: PS463E-01C003EN
  dmi.sys.vendor: TOSHIBA

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