Now I ran sudo dpkg-reconfigure jackd and allowed it to muck with my /etc/security/limits.d/audio.conf but it still throws the same error message. I don't want to log out so I cannot at the moment confirm whether a reboot would help, but jackd continues to refuse to run in either a slave sudo login in an xterm or a new guest X session.
Now I ran sudo dpkg-reconfigure jackd and allowed it to muck with my /etc/security/ limits. d/audio. conf but it still throws the same error message. I don't want to log out so I cannot at the moment confirm whether a reboot would help, but jackd continues to refuse to run in either a slave sudo login in an xterm or a new guest X session.