On Mon, 13 Mar 2017 14:24:35 -0400, Mac wrote: >If I understand your reply, dbus provides some magic that allows >pulseaudio (as installed with UBS16.04) to see when a jackd2 server is >started The Ubuntu package name is "jackd2", but actually _not_ _jackd_ does use _dbus_, it's _jackdbus_. "Desktop" apps could use dbus, a https://www.freedesktop.org/ thingy. As everything else related to https://www.freedesktop.org/ dbus could be useful, but not necessarily is useful for every task. A bowling ball is useful for bowling, but less good to play volleyball. The package provides /usr/bin/jackd as well as /usr/bin/jackdbus http://packages.ubuntu.com/xenial/amd64/jackd2/filelist I don't know why the Ubuntu Studio team makes it the default for Ubuntu Studio. There seems to be no way to successfully argue against it. DAW users very seldom need jackdbus and other users very seldom need the jack sound server at all. That jackdbus is installed seems not to be related to issues. Nothing ever auto-starts jackdbus on my Linux installs. I'm running Arch Linux as well as an "expert" Ubuntu install: [root@archlinux moonstudio]# systemd-nspawn -q [root@moonstudio ~]# grep PRETTY /etc/os-release PRETTY_NAME="Ubuntu 16.04.2 LTS" [root@moonstudio ~]# dpkg -l jackd2 | grep ii ii jackd2 1.9.10+20150825git1ed50c92~dfsg-1ubuntu1 amd64 JACK Audio Connection Kit (server and example clients) [root@moonstudio ~]# cat /usr/share/dbus-1/services/org.jackaudio.service [D-BUS Service] Name=org.jackaudio.service Exec=/usr/bin/jackdbus auto [root@moonstudio ~]# logout [root@archlinux moonstudio]# grep PRETTY /etc/os-release PRETTY_NAME="Arch Linux" [root@archlinux moonstudio]# pacman -Q jack2 jack2 1.9.10.r241.ge0281d82-1 [root@archlinux moonstudio]# cat /usr/share/dbus-1/services/org.jackaudio.service [D-BUS Service] Name=org.jackaudio.service Exec=/usr/bin/jackdbus auto On both installs jackdbus is inactive. Regards, Ralf _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user