Hello, I tried to narrow down the possible triggers of the above-described bug. I think the bug is triggered by KeePassXC - it's reproducible and happens every time ONLY when I use Keepass to enter my credential on certain webpages in Firefox (perhaps it has something to do with Firefox, too). As requested I attach journalctl (only the part when the bug happens) - it really a few lines of logs. I also attach screenshot of Settings->Sound window before the bug and after to show additional entries of dummy adapters. Let me know I can do anything else.
** Attachment added: "syctemctl after bug" https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1875445/+attachment/5362843/+files/log2.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1875445 Title: Volume slider doesn't produce sound To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1875445/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs