indicator-sound slider moves erraticaly while dragging

[[e-mail]]

When I drag the slider to adjust the volume - the circle moves then goes back to its original position and starts moving slowly to the new position jumping back and forth. It's nearlly impossible to adjust the volume that way.

All other volume "indicators" available in Xubuntu work properly. I have to ajust the volume through Sounds Setting.

Also it would be nice if that volume control supports more than 100% volume.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: indicator-sound 12.10.2+14.04.20140401-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
Uname: Linux 3.13.0-43-generic x86_64
ActionStates: ({'mute': (true, signature '', [<false>]), 'phone-settings': (true, '', []), 'next.gmusicbrowser.desktop': (true, '', []), 'mic-volume': (true, '', [<0.100006103515625>]), 'scroll': (true, 'i', []), 'play-playlist.gmusicbrowser.desktop': (true, 's', []), 'gmusicbrowser.desktop': (true, '', [<{'running': <false>, 'state': <'Paused'>}>]), 'desktop-settings': (true, '', []), 'volume': (true, 'i', [<1.0>]), 'root': (true, '', [<{'title': <'Sound'>, 'accessible-desc': <'Volume (100%)'>, 'icon': <('themed', <['audio-volume-high-panel', 'audio-volume-high', 'audio-volume', 'audio']>)>, 'visible': <true>}>]), 'previous.gmusicbrowser.desktop': (true, '', []), 'play.gmusicbrowser.desktop': (true, '', [<'Paused'>])},)
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
CurrentDesktop: XFCE
Date: Fri Jan 9 12:31:20 2015
InstallationDate: Installed on 2014-10-29 (72 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
SourcePackage: indicator-sound
UpgradeStatus: No upgrade log present (probably fresh install)

[[e-mail] (roccoor)]

On a second PC next to mine the volume works properly.