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[Bug 1372520] Re: On Lenovo Yoga 2 Pro laptop PS/2 Synaptics TouchPad detected as pointer device by Xorg

 

Xorg.0.log showing Xorg detecting the touchpad incorrectly as a mouse pointer:
[    11.016] (II) config/udev: Adding input device PS/2 Synaptics TouchPad (/dev/input/event4)
[    11.016] (**) PS/2 Synaptics TouchPad: Applying InputClass "evdev pointer catchall"
[    11.016] (II) Using input driver 'evdev' for 'PS/2 Synaptics TouchPad'


** Summary changed:

- [SRU regression] PS/2 Synaptics TouchPad seen as pointer device
+ On Lenovo Yoga 2 Pro laptop PS/2 Synaptics TouchPad detected as pointer device by Xorg

** Tags removed: package-from-proposed regression-proposed

** Attachment added: "Xorg.0.log from most recent boot"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1372520/+attachment/4212375/+files/Xorg.0.log

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Title:
  On Lenovo Yoga 2 Pro laptop PS/2 Synaptics TouchPad detected as
  pointer device by Xorg

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  In the current kernel release for trusty (linux-
  image-3.13.0-35-generic 3.13.0-35.62) the touchpad on my Lenevo Yoga 2
  Pro laptop is correctly detected as a touchpad device. In the latest
  kernel in trusty-proposed (linux-image-3.13.0-36-generic 3.13.0-36.63)
  this device is incorrectly detected as a 'pointer' device.

  Xorg.0.log run under linux-image-3.13.0-35-generic:
  [    10.706] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad (/dev/input/event4)
  [    10.706] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "evdev touchpad catchall"
  [    10.706] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "touchpad catchall"
  [    10.706] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "Default clickpad buttons"
  [    10.706] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "touchpad catchall"
  [    10.706] (II) LoadModule: "synaptics"
  [    10.706] (II) Loading /usr/lib/xorg/modules/input/synaptics_drv.so
  [    10.706] (II) Module synaptics: vendor="X.Org Foundation"
  [    10.706]    compiled for 1.15.0, module version = 1.7.4
  [    10.706]    Module class: X.Org XInput Driver
  [    10.706]    ABI class: X.Org XInput driver, version 20.0
  [    10.706] (II) Using input driver 'synaptics' for 'SynPS/2 Synaptics TouchPad'

  
  Xorg.0.log run under linux-image-3.13.0-36-generic:
  [    10.389] (II) config/udev: Adding input device PS/2 Synaptics TouchPad (/dev/input/event4)
  [    10.389] (**) PS/2 Synaptics TouchPad: Applying InputClass "evdev pointer catchall"
  [    10.389] (II) Using input driver 'evdev' for 'PS/2 Synaptics TouchPad'
  [    10.389] (**) PS/2 Synaptics TouchPad: always reports core events
  [    10.389] (**) evdev: PS/2 Synaptics TouchPad: Device: "/dev/input/event4"
  [    10.389] (--) evdev: PS/2 Synaptics TouchPad: Vendor 0x2 Product 0x1
  [    10.389] (--) evdev: PS/2 Synaptics TouchPad: Found 3 mouse buttons
  [    10.389] (--) evdev: PS/2 Synaptics TouchPad: Found relative axes
  [    10.389] (--) evdev: PS/2 Synaptics TouchPad: Found x and y relative axes
  [    10.389] (II) evdev: PS/2 Synaptics TouchPad: Configuring as mouse
  [    10.389] (**) evdev: PS/2 Synaptics TouchPad: YAxisMapping: buttons 4 and 5
  [    10.389] (**) evdev: PS/2 Synaptics TouchPad: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
  [    10.389] (**) Option "config_info" "udev:/sys/devices/platform/i8042/serio1/input/input5/event4"
  [    10.389] (II) XINPUT: Adding extended input device "PS/2 Synaptics TouchPad" (type: MOUSE, id 13)

  Snippet from /proc/bus/input/devices:
  I: Bus=0011 Vendor=0002 Product=0001 Version=0000
  N: Name="PS/2 Synaptics TouchPad"
  P: Phys=isa0060/serio1/input0
  S: Sysfs=/devices/platform/i8042/serio1/input/input5
  U: Uniq=
  H: Handlers=mouse0 event4 
  B: PROP=0
  B: EV=7
  B: KEY=70000 0 0 0 0
  B: REL=3

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-36-generic 3.13.0-36.63
  ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6
  Uname: Linux 3.13.0-36-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  tim        2825 F.... pulseaudio
                        tim        3337 F.... pulseaudio
   /dev/snd/controlC1:  tim        2825 F.... pulseaudio
                        tim        3337 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Mon Sep 22 16:33:01 2014
  HibernationDevice: RESUME=/dev/mapper/MainVG-swap
  InstallationDate: Installed on 2014-09-16 (5 days ago)
  InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  MachineType: LENOVO 20266
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-36-generic.efi.signed root=/dev/mapper/MainVG-root ro video.use_native_backlight=1 quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-36-generic N/A
   linux-backports-modules-3.13.0-36-generic  N/A
   linux-firmware                             1.134
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/25/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 76CN35WW
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Yoga2
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900058STD
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo Yoga 2 Pro
  dmi.modalias: dmi:bvnLENOVO:bvr76CN35WW:bd03/25/2014:svnLENOVO:pn20266:pvrLenovoYoga2Pro:rvnLENOVO:rnYoga2:rvr31900058STD:cvnLENOVO:ct10:cvrLenovoYoga2Pro:
  dmi.product.name: 20266
  dmi.product.version: Lenovo Yoga 2 Pro
  dmi.sys.vendor: LENOVO

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References