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. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1865499 Title: pulseaudio doesn't detect (new) USB headset Status in pulseaudio package in Ubuntu: New Bug description: When booting the system (Lenovo Thinkpad L480/L490), all connected USB headsets are recognized and can be used, and configured via pavucontrol. When hot-plugging the USB headset, either the speaker is recognized, or the microphone, rarely both. But when both are recognized, the microphone is always a "multichannel" device. When both the speaker and the "multichannel" microphone are recognized, only one can be used - either speaker or microphone. When selecting the speaker, the microphone is switched back to any other device available, them same goes for the microphone and the speaker - any other speaker is selected. A workaround is to plug in the USB headset and run "pkill -U $USER pulseaudio". Everything works fine until the next hot-plug (eg. a second headset). Running "lsb_release -a" gives No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.4 LTS Release: 18.04 Codename: bionic Attached is the output from "ubuntu-bug pulseaudio". Currently 10 % of our users are affected by this bug, all running the same Ubuntu and package versions. I activated the proposed repository to check if any updates available fix the problem, but to no avail. I also switched kernels (from 4.15 to 5.5 mainline from https://wiki.ubuntu.com/Kernel/MainlineBuilds). I read bug #1325282 (https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1325282) and it sounds somewhat very familiar, but instead of "env={}" in /usr/share/ubuntu-drivers-common/detect/sl-modem.py there's "env=env". Removing "env=env" doesn't resolve the problem. Do you require additional information? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1865499/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
