Speaker-test writes to the default alsa device, which happens to be the alsa-pulseaudio bridge, which explains why you get no output from it, and then when sound resumes you get output.
Consider the following: pasuspender -- speakertest -Dplug:front This should work as you expect. (It would be great if pasuspender disabled the alsa-pulse bridge). 3 a) is kinda obvious, pasuspender was never intended to have multiple copies running, because it's expected whatever you're running under it will lock the sound card exclusively. Making running another copy of pasuspender in parallel something outside of the designers expectations. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/944295 Title: pasuspender tool doesn't work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/944295/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs