This is simple GUI behavior problem. Nothing to do with environment. 4.1, 7.1 or any hardware, it does not matter as long as x.1 wich is with subwoofer environment. If you just move around the slider for volume, it would happen.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1196318 Title: When I slide subwoofer volume above 100%, other volumes also go up. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1196318/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs