the problem is solved when i complete remove indicator-sound with dependencies by synaptic and install it (with unity-control-center). before I installed unity8, I also deleted
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to indicator-sound in Ubuntu. https://bugs.launchpad.net/bugs/1343962 Title: Sound slider moves itself randomly when scrolling or moving sound pointer Status in “indicator-sound” package in Ubuntu: Confirmed Bug description: I've described this bug in details at askubuntu.com :: http://askubuntu.com/questions/499268/strange-bug-with-sound-slider In brief: 1) Problem caused by installation of Ubuntu-SDK 2) Removing Ubuntu-SDK didn't fix the problem 3) This problem occurs only with desktop sound slider (notification slider). In Ubuntu sound settings, everything is fine. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: indicator-sound 12.10.2+14.04.20140401-0ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4 Uname: Linux 3.13.0-32-generic x86_64 ActionStates: ({'next.vlc.desktop': (true, signature '', @av []), 'mute': (true, '', [<false>]), 'phone-settings': (true, '', []), 'mic-volume': (true, '', [<0.1183929443359375>]), 'scroll': (true, 'i', []), 'play-playlist.spotify.desktop': (true, 's', []), 'vlc.desktop': (true, '', [<{'running': <false>, 'state': <'Paused'>}>]), 'desktop-settings': (true, '', []), 'previous.vlc.desktop': (true, '', []), 'play-playlist.vlc.desktop': (true, 's', []), 'spotify.desktop': (true, '', [<{'running': <false>, 'state': <'Paused'>}>]), 'volume': (true, 'i', [<0.51992553710937495>]), 'play.spotify.desktop': (true, '', [<'Paused'>]), 'previous.spotify.desktop': (true, '', []), 'root': (true, '', [<{'title': <'Dźwięk'>, 'accessible-desc': <'Głośność (51%)'>, 'icon': <('themed', <['audio-volume-medium-panel', 'audio-volume-medium', 'audio-volume', 'audio']>)>, 'visible': <true>}>]), 'next.spotify.desktop': (true, '', []), 'play.vlc.desktop': (true, '', [<'Paused'>])},) ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 CurrentDesktop: Unity Date: Fri Jul 18 12:28:16 2014 ExecutablePath: /usr/lib/x86_64-linux-gnu/indicator-sound/indicator-sound-service InstallationDate: Installed on 2014-04-17 (91 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) ProcEnviron: PATH=(custom, no user) LANGUAGE=pl XDG_RUNTIME_DIR=<set> LANG=pl_PL.UTF-8 SHELL=/bin/bash SourcePackage: indicator-sound UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1343962/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp