I am having a similar issue, though I did not install ubuntu-sdk. I unfortunately don't know when this bug started happening as my install of Ubuntu 14.04.1 (from Live-CD) is only a few-days old. I attached my own sources.log.
** Attachment added: "sources.log" https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1343962/+attachment/4172834/+files/sources.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1343962 Title: Sound slider moves itself randomly when scrolling or moving sound pointer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1343962/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
