What you have on the back - and that you plug your speakers in - is listed as a headphone jack, so the decision to switch to analog headphones is correct.
I think the problem here is that for some reason the same DAC is chosen to control both internal speaker and headphones jack. As a result the "speaker" alsamixer volume actually controls Headphone volume as well. ** Package changed: pulseaudio (Ubuntu) => alsa-driver (Ubuntu) ** Changed in: alsa-driver (Ubuntu) Status: New => Triaged ** Summary changed: - No sound after plugging in external speakers + "Speaker" volume controls headphone volume ** Summary changed: - "Speaker" volume controls headphone volume + "Speaker playback volume" controls headphone volume as well -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/852915 Title: "Speaker playback volume" controls headphone volume as well To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/852915/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs