Comment 7 for bug 1865499

I installed a fresh Ubuntu 18.04.3 and updated nearly every package one by one (to name a few, pulseaudio, libasound, systemd, kernel (4.15, later HWE 5.3) - all to no avail, up to a full upgrade of all packages so now the system is 18.04.4. The problem is not reproducable with a fresh and clean installation.

But we have a new case, the colleague got the auto security updates on 2020-03-02 and did a manual package update on 2020-03-04. After the updates on 2020-03-04 the system was rebooted by the user, and now has the same bug.

This affects both wired (USB) and wireless (bluetooth) headsets. As soon as the headset is connected and re-connected it's not recognized. Running "pkill -U $USER pulseaudio" solves this problem in 8/10 cases. The other 2/10 are full system reboots.

Attached is the dpkg.log with the updates from 2020-03-02 and 2020-03-04. I couldn't determine anything that would point near the/a problematic package.

I still need to find a way to restart pulseaudio with a higher debug level to check if anything pops up with pulse.