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[Bug 1472739] Re: Wrong handling of forcepad edges

 

Jan, at your earliest convenience, could you please test the latest
upstream kernel available from the very top line at the top of the page
from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D (the release
names are irrelevant for testing, and please do not test the daily
folder)? Install instructions are available at
https://wiki.ubuntu.com/Kernel/MainlineBuilds . This will allow
additional upstream developers to examine the issue.

If testing on your main install would be inconvenient, one may:
1) Install Ubuntu to a different partition and then test this there.
2) Backup, or clone the primary install.

If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where X, and Y are the first two numbers of the kernel version, and Z is
the release candidate number if it exists.

If the mainline kernel does not fix the issue, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Please note, an error to install the kernel does not fit the criteria of
kernel-bug-exists-upstream.

Once testing of the latest upstream kernel is complete, please mark this
report's Status as Confirmed. Please let us know your results.

Thank you for your understanding.

** Tags removed: bios-outdated-1.33
** Tags added: latest-bios-1.33

** Changed in: linux (Ubuntu)
   Importance: Low => Medium

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1472739

Title:
  Wrong handling of forcepad edges

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I have experienced incorrect behaviour of the driver when forcepad
  very edges are touched (HP Elitebook 1040 G1). With Tap-and-drag
  gesture disabled and even tapping disabled (although this does not
  change anything) when one finger touches the touchpad and another taps
  the very edge of the touchpad (any side), the system behaves as if
  there was a click and hold action as long as the finger is on the
  touchpad. This seems to be linked to the driver reporting a left click
  when the second finger touches the veery edge of the touchpad, see
  output from evtest below.

  How to replicate: disable tapping. On the desktop, put one finger on
  the touchpad, then lightly tap the very 1mm of the edge. Move the
  first finger down and right and notice an area being selected. This
  should only happen when the finger is pressed (like for a click)
  against the touchpad and held so during the move.

  Attached are outputs from synclient and xinput.

  I believe it is a bug in a kernel driver.

  From system logs:
  [    3.349148] psmouse serio3: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2a1, caps: 0xd40923/0x840300/0x12e800, board id: 2685, fw id: 1608298

  ****

  cat /proc/bus/input/devices

  I: Bus=0011 Vendor=0002 Product=0007 Version=01a1
  N: Name="SynPS/2 Synaptics TouchPad"
  P: Phys=isa0060/serio3/input0
  S: Sysfs=/devices/platform/i8042/serio3/input/input10
  U: Uniq=
  H: Handlers=mouse0 event5
  B: PROP=5
  B: EV=b
  B: KEY=e520 610000 0 0 0 0
  B: ABS=660800011000003

  ****

  Output from evtest of the very moment second finger touched the bottom
  edge of the touchpad:

  Event: time 1436383712.432784, type 3 (EV_ABS), code 58 (ABS_MT_PRESSURE), value 68
  Event: time 1436383712.432784, type 3 (EV_ABS), code 24 (ABS_PRESSURE), value 68
  Event: time 1436383712.432784, -------------- SYN_REPORT ------------
  Event: time 1436383712.514285, type 1 (EV_KEY), code 272 (BTN_LEFT), value 1
  Event: time 1436383712.514285, -------------- SYN_REPORT ------------
  Event: time 1436383712.554585, type 3 (EV_ABS), code 58 (ABS_MT_PRESSURE), value 69
  Event: time 1436383712.554585, type 3 (EV_ABS), code 24 (ABS_PRESSURE), value 6

  Thanks,
  Jan

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.16.0-41-generic 3.16.0-41.57~14.04.1
  ProcVersionSignature: Ubuntu 3.16.0-41.57~14.04.1-generic 3.16.7-ckt11
  Uname: Linux 3.16.0-41-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.11
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed Jul  8 19:14:14 2015
  InstallationDate: Installed on 2015-05-14 (54 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  SourcePackage: linux-lts-utopic
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  jp         2090 F.... pulseaudio
   /dev/snd/controlC0:  jp         2090 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=c4a08a5c-08ad-42d4-8a39-76149ed3a95e
  InstallationDate: Installed on 2015-05-14 (220 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  Lsusb:
   Bus 001 Device 002: ID 8087:8000 Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 002 Device 006: ID 05c8:0369 Cheng Uei Precision Industry Co., Ltd (Foxlink) 
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Hewlett-Packard HP EliteBook Folio 1040 G1
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-57-generic root=UUID=f2cdc7c4-e5be-4934-9e34-3bb55e1d87fc ro acpi_osi=Linux "acpi_osi=!Windows 2012"
  ProcVersionSignature: Ubuntu 3.16.0-57.77~14.04.1-generic 3.16.7-ckt20
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-57-generic N/A
   linux-backports-modules-3.16.0-57-generic  N/A
   linux-firmware                             1.127.19
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  Tags:  trusty
  Uname: Linux 3.16.0-57-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
  _MarkForUpload: True
  dmi.bios.date: 07/20/2015
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: L83 Ver. 01.32
  dmi.board.name: 213E
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 24.2D
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrL83Ver.01.32:bd07/20/2015:svnHewlett-Packard:pnHPEliteBookFolio1040G1:pvrA3008D510B03:rvnHewlett-Packard:rn213E:rvrKBCVersion24.2D:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP EliteBook Folio 1040 G1
  dmi.product.version: A3008D510B03
  dmi.sys.vendor: Hewlett-Packard

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