[Acer Aspire 5750-9668] touchpad doesn't scroll with one finger on extreme right in GNOME Flashback (Metacity)

[penalvch]

1) lsb_release -rd
Description: Ubuntu 14.04 LTS
Release: 14.04

2) apt-cache policy gnome-session-flashback
gnome-session-flashback:
  Installed: 1:3.8.0-1ubuntu11
  Candidate: 1:3.8.0-1ubuntu11
  Version table:
     1:3.8.0-1ubuntu12 0
        400 http://us.archive.ubuntu.com/ubuntu/ trusty-proposed/universe amd64 Packages
 *** 1:3.8.0-1ubuntu11 0
        500 http://us.archive.ubuntu.com/ubuntu/ trusty/universe amd64 Packages
        100 /var/lib/dpkg/status

I: Bus=0011 Vendor=0002 Product=0007 Version=01b1
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input9
U: Uniq=
H: Handlers=mouse0 event12
B: PROP=9
B: EV=b
B: KEY=6420 30000 0 0 0 0
B: ABS=260800011000003

3) What is expected to happen is when one logs into the GNOME Session Flashback (Metacity) touchpad scrolling with one finger on the extreme right works by default, or if not, it's configurable via GUI.

4) What happens instead is it is not.

WORKAROUND: Two finger scrolling works.

WORKAROUND: If one logs out, and logs into either xfce or Xubuntu, one finger scrolling works. Hence, this would appear to be an issue with GNOME Session Flashback (Metacity) versus HW or other problem.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: gnome-session-flashback 1:3.8.0-1ubuntu11
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: Unity
Date: Sat May 3 11:19:14 2014
GsettingsChanges:

InstallationDate: Installed on 2013-12-19 (135 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131219)
PackageArchitecture: all
SourcePackage: gnome-panel
UpgradeStatus: No upgrade log present (probably fresh install)

[Dmitry Shachnev (mitya57)]

This should be configurable via unity-control-center, is it not? If not, can you reproduce this behaviour in Unity (which also uses unity-settings-daemon and unity-control-center)?

[penalvch (penalvch)]

Dmitry Shachnev, this problem has noting to do with Unity.

[Alberts Muktupāvels (muktupavels)]

Why do you think that this is bug with gnome-panel? GNOME Panel does not know anything about touchpad nor any other device you are using.

This is most likely bug with gnome-settings-daemon and/or gnome-control-center. But ubuntu at least for now are using unity-settings-daemon and unity-control-center.

[penalvch (penalvch)]

Alberts Muktupāvels, fair enough. Feel free to change it to the appropriate package that would be the root cause of this problem while using gnome-session-fallback / gnome-session-flashback (not Unity), as these and their dependencies are all Ubuntu supported packages.

[Ashhar Hasan (hashhar)]

I think a workaround is to use xinput.

xinput
# Note down your touchpad device id
xinput set-prop device_id SynapticsEdgeScrolling 1 1 1
# the default is 0 0 0

Read more about it here... http://www.x.org/archive/X11R7.5/doc/man/man4/synaptics.4.html

So maybe we need to add a GUI component to the control centre to toggle this.
And while we are at it, we should try to integrate as many settings from the synaptic drivers as possible. A lot of people are put off by being unable to configure their trackpads.

PS: I am new here. Actually my first comment and appearance here. (I just made an exclusively for this issue)
I was hoping if someone would be kind enough to tell me the file which may need to be modified for the fix. I would like to get my hands dirty and this seems like something easy.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[penalvch (penalvch)]

As I no longer have the hardware, I'm not pursuing a fix towards this.

[Ashhar Hasan (hashhar)]

This is more of an enhancement needed rather than a bug. So how do we go about doing it.

PS: Would someone be kind enough to tell me which are the files responsible for drawing the System Settings > Mouse and Touchpad pages. The fix should be done there I think. (Really new to this.)

[Alberts Muktupāvels (muktupavels)]

Upstream:
https://git.gnome.org/browse/gnome-control-center/tree/panels/mouse

Unity:
http://bazaar.launchpad.net/~unity-control-center-team/unity-control-center/trunk/files/head:/panels/mouse/

GNOME Flashback in ubuntu use unity-control-center and unity-settings-deamon.

[Ashhar Hasan (hashhar)]

Thanks. I'll try to see if I can work on it.