I just played a little with 'gdb'. Please see the attachment. Hope you will find the information useful. Just noticed the process has seven threads. Is it ok? Or maybe it stuck or something? BTW, I had to interrupt the process, since it didn't crash when I connected the sound-card.
** Attachment added: "gdb-fwupd.txt" https://bugs.launchpad.net/ubuntu/+source/fwupd/+bug/1574079/+attachment/4673177/+files/gdb-fwupd.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1574079 Title: USB audio device is not recognized after startup in 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fwupd/+bug/1574079/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs