Experienced same issue with a Gigabyte 5.1 mother board (2013 vintage), moving the audio jack to another output solved the problem, not other changes were made to the system. OS used Ubuntu 14.04 LTS Trusty. In this case it is definitely due to incorrectly sensing the audio output jack being used.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/874535 Title: Volume Slider Jumps, due to rapidly changing hardware jack sense state To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/874535/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
