I can now confirm that the problem is gone after switching to pulseaudio. This fixes all hangs, including "alsamixer" hanging on the command line before showing it's text-based GUI.
** Also affects: wireplumber (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2081281 Title: gnome terminal and other apps freezes for about 30 seconds To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/2081281/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs