Volume slider don't follow pointer position

[Fabio Marconi]

Hi
TESTCASE:
In a live environment, open the unity control center and try to slightly move the volume regulation, it won't follow the pointer position, see attached screencast.
This is not reproducible on VM, on other regulations sliders are following the pointer as expected to be
My best regards
Fabio

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity-control-center 14.04.3+14.04.20140220.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-11.31-generic 3.13.3
Uname: Linux 3.13.0-11-generic x86_64
ApportVersion: 2.13.2-0ubuntu5
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Feb 24 22:06:05 2014
EcryptfsInUse: Yes
SourcePackage: unity-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
usr_lib_unity-control-center:
 activity-log-manager 0.9.7-0ubuntu10
 deja-dup 29.5-0ubuntu2
 gnome-control-center 1:3.6.3-0ubuntu50
 gnome-control-center-unity 1.3+14.04.20140117-0ubuntu1

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1284325

[Charles Kerr (charlesk)]

I'm able to reproduce this in a normal session just by starting to drag the slider very slowly.

However, I'm also able to reproduce this with stock GtkRange widgets too, which is what IDO is using, so I don't think this bug is specific to IDO. Fabio, could you report this upstream to GTK+'s devs with a demo using the GtkRange widgets from, say, gtk3-demo (in the gtk-3-examples package) -> color chooser -> change above color -> add color -> slow drag on the range sliders?