xubuntu 15.10 synaptics ps2 touchpad mouse cursor jumps

[liontamer]

running live xubuntu 15.10 from usb stick. Synaptics ps2 touchpad configured to act as simple mouse. Mouse cursor suddenly and frequently jumps to screen edge with no reason. Problem not present in 15.04 with same touchpad configuration but has occurred in some earlier versions. Not prepared to upgrade as touchpad practically unusable.
---
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
CasperVersion: 1.365
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: XFCE
DistUpgraded: Fresh install
DistroCodename: wily
DistroRelease: Ubuntu 15.10
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller])
   Subsystem: Pegatron Device [1b0a:2109]
   Subsystem: Pegatron Device [1b0a:2109]
LiveMediaBuild: Xubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
MachineType: Novatech Ltd. Novatech 15.6 NSPIRE Laptop
Package: xorg 1:7.7+7ubuntu4
PackageArchitecture: amd64
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi initrd=/casper/initrd.lz file=/cdrom/preseed/username.seed boot=casper quiet splash --- persistent
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Tags: wily ubuntu
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
Uname: Linux 4.2.0-16-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 12/05/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: C15B.610
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: C15B
dmi.board.vendor: Novatech Ltd.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Novatech Ltd.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrC15B.610:bd12/05/2013:svnNovatechLtd.:pnNovatech15.6NSPIRELaptop:pvr1.0:rvnNovatechLtd.:rnC15B:rvr1.0:cvnNovatechLtd.:ct10:cvr1.0:
dmi.product.name: Novatech 15.6 NSPIRE Laptop
dmi.product.version: 1.0
dmi.sys.vendor: Novatech Ltd.
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.64-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4
version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
xserver.bootTime: Mon Nov 2 10:44:16 2015
xserver.configfile: default
xserver.errors:
 Failed to load module "nvidia" (module does not exist, 0)
 Failed to load module "nvidia" (module does not exist, 0)
 NOUVEAU(G0): Failed to initialise context object: 2D_NVC0 (0)
 NOUVEAU(G0): Error initialising acceleration. Falling back to NoAccel
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 18412
 vendor AUO
xserver.version: 2:1.17.2-1ubuntu9

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1509776/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[penalvch (penalvch)]

liontamer, thank you for reporting this and helping make Ubuntu better.

Could you please run the following command from a terminal as it will automatically gather and attach updated debug information to this report:
apport-collect -p xorg 1509776

Please ensure you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information.

When reporting xorg related bugs in the future, please do so via the above method. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[liontamer (geoff-lionhouse)]

Thank you for looking into this problem. I am sorry that the
information I have given is so limited but I ran 15.10 from a memory
stick, without installing, to check that it would work before actually
installing, and discovered the problem. I am not going to install 15.10
as it is more-or-less unusable with this problem and I do not want to
install it to get debug info and reinstall 15.04 to continue to use the
machine. I do not khow the live versions work but will the apport
command work and can I install xdiagnose, if so I will do this. 15.04
run from a usb stick does not show the same problem so it is something
that has been changed.

On 01.11.2015 15:32, Christopher M. Penalver wrote:
> liontamer, thank you for reporting this and helping make Ubuntu
> better.
>
> Could you please run the following command from a terminal as it will
> automatically gather and attach updated debug information to this
> report:
> apport-collect -p xorg 1509776
>
> Please ensure you have the package xdiagnose installed, and that you
> click the Yes button for attaching additional debugging information.
>
> When reporting xorg related bugs in the future, please do so via the
> above method. You can learn more about this functionality at
> https://wiki.ubuntu.com/ReportingBugs.
>
> ** Changed in: xorg (Ubuntu)
> Importance: Undecided => Low
>
> ** Changed in: xorg (Ubuntu)
> Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the
> bug
> report.
> https://bugs.launchpad.net/bugs/1509776
>
> Title:
> xubuntu 15.10 synaptics ps2 touchpad mouse cursor jumps
>
> Status in xorg package in Ubuntu:
> Incomplete
>
> Bug description:
> running live xubuntu 15.10 from usb stick. Synaptics ps2 touchpad
> configured to act as simple mouse. Mouse cursor suddenly and
> frequently jumps to screen edge with no reason. Problem not
> present
> in 15.04 with same touchpad configuration but has occurred in some
> earlier versions. Not prepared to upgrade as touchpad practically
> unusable.
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1509776/+subscriptions

[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[liontamer (geoff-lionhouse)]

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[penalvch (penalvch)]

liontamer, 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 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, Y, and Z are numbers corresponding to the kernel version.

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.

[liontamer (geoff-lionhouse)]

Have installed 15-10 alongside 15.04. Problem still there with 15.10 even after installing kernel 4.30-wily. Seems to be related to scroll bars reaching end of travel. tag added as requested.

[liontamer (geoff-lionhouse)]

Sorry I am being slow to think. I tried installing kernel 4.30 in 15.04 in place of 3-3.19-0-31 and the bug is not present with either but it is present in 15.10 with either 4.30 or 4.2.0-16. This suggests to me that the problem is not in the kernel. I wonder if it is connected with window snapping (although I have this turned off), not moving the window but moving the cursor in anticipation?

[Owen Williams (ywwg)]

I also started seeing this problem after I upgraded to 15.10. I'll be typing and then the cursor will zip to one edge of the screen or the other. I'm on a Dell XPS 13 (2013 model). Currently seeing the issue with kernel 4.2.0-27

My current experiment is to kill syndaemon to see if palm detection is the issue, and then being really really sure that I'm not touching the touchpad while I type.

[liontamer (geoff-lionhouse)]

Still present in 16.04

[liontamer (geoff-lionhouse)]

The following sequence of operations produces the bug every time. xubuntu 16.04 as
released, default settings for touchpad. Open file manager window on directory big enough
to require scrollbar. Using touchpad move mouse pointer onto scrollbar slider. Press
and hold down left (pad) button. Using right finger on touchpad operate scroll slider.
So far all operates correctly. Remove R finger from touchpad to stop scroll but still
holding down L button. Replace R finger on touchpad to resume scrolling and mouse
pointer jumps to the right, often to the screen edge. If before replacing the R finger
the L button is released and repressed scrolling can be resumed correctly.

[penalvch (penalvch)]

liontamer, to clarify, if you boot into a 3.19.x kernel from 15.04 via https://wiki.ubuntu.com/Kernel/MainlineBuilds is this still reproducible?

[liontamer (geoff-lionhouse)]

I am currently using 15.04 with kernel 3.19.0-61 with no problem. I have tried 4.30 in 15.04 with no problem. I have only tried 15.10 and 16.04 run from a usb stick but the problem is there in 15.10 with both kernels 4.2.0-16 and 4.30 and whatever 16.04 had on release. The problem is linked to the 15.10 release not the kernel version; a different driver?. Incidentally the bug is also present in lubuntu 16.04, but maybe this is predictable. If you really think it will help I will install 16.04 instead of testing it from a usb stick but it is a lot of trouble as I have to then re-install 15.04 and all my other software; the bug makes 16.04 unusable.

[penalvch (penalvch)]

liontamer, to see if this is already resolved, could you please test http://cdimage.ubuntu.com/daily-live/current/ and advise to the results?

You wouldn't have to install it if the issue manifests in a live environment.

[liontamer (geoff-lionhouse)]

Tested amd64.iso as requested in #30. Problem still present, exactly the same.

[Kevin Dalley (nereocystis)]

For me, the problem is fixed when applying the patches in

http://xps13-9333.appspot.com/#touchpad

or

https://askubuntu.com/questions/462135/touchpad-issue-jumping-cursor-while-typing-ubuntu-14-04-syndaemon-dont-help

[liontamer (geoff-lionhouse)]

The problem is completely solved in xubuntu 18.04. Thank you to anyone who helped to fix it.

[penalvch (penalvch)]

liontamer, this bug report is being closed due to your last comment https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/1509776/comments/33 regarding this being fixed with an update. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.