[Clickpads] Cursor jumps when clicking

[Simon P.]

With my Acer Travelmate B115-M running Ubuntu 14.04 x64, when I click the bottom left or right area on my clickpad to either primary or secondary click, the cursor jumps to another place on the screen far away from its initial location and executes the click at that location. The problem applies generally to clickpads in any laptop.

WORKAROUND: Execute the following at a terminal:
synclient RTCornerButton=0
synclient RBCornerButton=0
synclient LTCornerButton=0
synclient LBCornerButton=0
synclient AreaBottomEdge=3900

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-40-generic 3.13.0-40.69
ProcVersionSignature: Ubuntu 3.13.0-40.69-generic 3.13.11.10
Uname: Linux 3.13.0-40-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: simon 1363 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon Dec 1 10:53:42 2014
HibernationDevice: RESUME=UUID=ed9e8c10-35d7-4c2a-bfb6-64752c8fa146
InstallationDate: Installed on 2014-11-21 (9 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 1bcf:2c57 Sunplus Innovation Technology Inc.
 Bus 001 Device 006: ID 04e8:331e Samsung Electronics Co., Ltd
 Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Acer TravelMate B115-M
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-40-generic.efi.signed root=UUID=0520439d-62c3-4835-a7a8-42d3a7ca0c2d ro quiet splash acpi_backlight=vendor acpi_osi=Linux vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-40-generic N/A
 linux-backports-modules-3.13.0-40-generic N/A
 linux-firmware 1.127.8
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/27/2014
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.22
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: Roxy
dmi.board.vendor: Acer
dmi.board.version: Type2 - A01 Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.22:bd08/27/2014:svnAcer:pnTravelMateB115-M:pvrV1.22:rvnAcer:rnRoxy:rvrType2-A01BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: TravelMate B115-M
dmi.product.version: V1.22
dmi.sys.vendor: Acer

[Brad Figg (brad-figg)]

This change was made by a bot.

[penalvch (penalvch)]

Simon P., thank you for reporting this and helping make Ubuntu better. It looks like your laptop has a Clickpad as discussed at http://www.synaptics.com/en/clickpad.php ?

If so, barring some unforeseen bug, I think I may know what the problem is, and it would be a general Clickpad issue, versus your specific one.

Despite this, for starters, if you execute the following via a terminal, does the issue either stop or lessens significantly:
synclient RTCornerButton=0
synclient RBCornerButton=0
synclient LTCornerButton=0
synclient LBCornerButton=0
synclient AreaBottomEdge=3900

[Simon P. (simpre)]

yes, when i run these commands, the issue stops.

[Simon P. (simpre)]

Link to the upstream bug report: https://bugs.freedesktop.org/show_bug.cgi?id=87788

[penalvch (penalvch)]

Simon P., I just tested this in a Vivid live environment ( http://cdimage.ubuntu.com/daily-live/current/ ) on my own hardware (Lenovo IdeaPad S415 Touch) and this issue is no longer reproducible. Would this be the same for you?

[Simon P. (simpre)]

Yes, same for me. In the current Vivid build the issue with my clickpad described in this bug report is gone (instead there is another one: right click doesn't work)

[penalvch (penalvch)]

SImon P., regarding the scope of this report, would you need a backport to a release prior to Vivid, or may this be closed as Invalid?

As well, regarding the right click not working, this would be a different issue then the one scoped to this report. Hence, please feel free to file a new report about this regression.

[penalvch (penalvch)]

Simon P., I am closing this report because as per https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/1397924/comments/8 the bug has been fixed in the latest development version of Ubuntu - Vivid Vervet.

This is a significant bug in Ubuntu. If you need a fix for the bug in previous versions of Ubuntu, please perform as much as possible of the SRU Procedure [1] to bring the need to a developer's attention.

[1]: https://wiki.ubuntu.com/StableReleaseUpdates#Procedure

[Simon P. (simpre)]

Ok! Thanks for your help!

Am 09.01.2015 um 22:33 schrieb Christopher M. Penalver:
> Simon P., I am closing this report because as per
> https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-
> synaptics/+bug/1397924/comments/8 the bug has been fixed in the latest
> development version of Ubuntu - Vivid Vervet.
>
> This is a significant bug in Ubuntu. If you need a fix for the bug in
> previous versions of Ubuntu, please perform as much as possible of the
> SRU Procedure [1] to bring the need to a developer's attention.
>
> [1]: https://wiki.ubuntu.com/StableReleaseUpdates#Procedure
>
> ** Changed in: xserver-xorg-input-synaptics (Ubuntu)
> Status: Triaged => Fix Released
>