The "second problem" sounds like a separate bug, compared to the original problem. It would make more sense to track it as a separate bug against PulseAudio for something like "missing alsa volume sync on port change, if volume is exactly 100%", with alsa-info's attached at all three places: before switching port, after switching port (here you experience the problem), and after moving the slider (which corrects the problem again).
That said, I'm not sure I have time to track it down right now; around release time a lot of bugs are being filed.
Hi and thanks for your comments and videos.
The "second problem" sounds like a separate bug, compared to the original problem. It would make more sense to track it as a separate bug against PulseAudio for something like "missing alsa volume sync on port change, if volume is exactly 100%", with alsa-info's attached at all three places: before switching port, after switching port (here you experience the problem), and after moving the slider (which corrects the problem again).
That said, I'm not sure I have time to track it down right now; around release time a lot of bugs are being filed.