Invalid range of CircSrollDelta

Binary package hint: kcm-touchpad

I was sent here with my report from https://bugs.kde.org/show_bug.cgi?id=248593

Version: unspecified (using KDE 4.4.2)
> lsb_release -rd
Description: Ubuntu 10.04.1 LTS
Release: 10.04
kcm-touchpad 0.3.1-0ubuntu3(i386)

Using the Touchpad-Interface to enable circular scrolling, the slider generates
values between 300 (leftmost) and 30 (rightmost). But to get something going I
use:

    synclient CircScrollDelta=0.05

which is far outside the range, the GUI allows (checked via synclient -l).

Putting my value of 0.05 in an extra file in

    /usr/lib/X11/xorg.conf.d/50-circscrolldelta.conf

did not help, as the settings in KControl take precedence. (Actually I can set
values, not available in the GUI. But everything else is overwritten).

Please extend the range!

Meanwhile: Is there a way to disable the touchpad-settings in KControl to use
my conf file? Or can I somehow reoverride after KControl was loaded on
session-startup?

Reproducible: Always

Steps to Reproduce:
KDE loads
synclient -l
the value is somewhere between 300 and 30
synclient CircScrollDelta=0.05
synclient -l
confirm the new value and check circular scrolling works
open kcontrol/mouse/touchpad change and save something
synclient -l
value is back to somewhere between 300 and 30, circscrolling is effectively
disabled.

Actual Results:
On every save or reboot, the value is back to somewhere between 300 and 30,
circscrolling is effectively disabled.

Expected Results:
Let me specify a value of 0.05

Maybe you could add a switch, if touchpad-settings should be left to
system-defaults, thereby not interfering with rules in
/usr/lib/X11/xorg.conf.d/

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: kcm-touchpad 0.3.1-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.32-24.41-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic i686
Architecture: i386
Date: Sat Aug 21 17:20:00 2010
InstallationMedia: Kubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427)
ProcEnviron:
 LANGUAGE=
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: kcm-touchpad