On Tue, 2016-03-29 at 16:37 +0100, Joao Bruno wrote: > this the jack version > jb@jb-SATELLITE-L50-B:~$ pulseaudio --kill > jb@jb-SATELLITE-L50-B:~$ jackd -dalsa -dhw:1 -r48000 -p1024 -n3 > jackdmp 1.9.10 > Copyright 2001-2005 Paul Davis and others. > Copyright 2004-2013 Grame. > jackdmp comes with ABSOLUTELY NO WARRANTY > This is free software, and you are welcome to redistribute it > under certain conditions; see the file COPYING for details > no message buffer overruns > no message buffer overruns > no message buffer overruns > JACK server starting in realtime mode with priority 10 > audio_reservation_init > Acquire audio card Audio1 > creating alsa driver ... hw:1|hw:1|1024|3|48000|0|0|nomon|swmeter|- > |32bit > configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 3 > periods > ALSA: final selected sample format for capture: 32bit integer little- > endian > ALSA: use 3 periods for capture > ALSA: final selected sample format for playback: 32bit integer little- > endian > ALSA: use 3 periods for playback
If you now would start qjackctl, while jackd still runs in the terminal, it would work. > this is the message after i did your orientations No, you most likely didn't continue running jackd in the terminal, when launching qjackctl. > [snip] > /dev/audio|/dev/audio|1024|3|44100|0|0|nomon|swmeter|-|32bit ^^^^^ ^^^^^ Qjackctl does use different settings, instead of 48000 used by the terminal and qjackctl by default doesn't kill a running instance of jackd, it does use it, as long as there is no bug or a script is started by the jackd settings. In qjackctl's settings ensure that in "Options" "Execute script at startup" is unchecked, disabled. > ALSA lib control.c:953:(snd_ctl_open_noupdate) Invalid CTL /dev/audio > control open "/dev/audio" (No such file or directory) > ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM /dev/audio > ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM /dev/audio > ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to > capture-only mode > Cannot initialize driver > JackServer::Open failed with -1 > Failed to open server > 16:36:09.369 JACK was stopped with exit status=255. > [snip] Your qjackctl settings are bad, and/or qjackctl is buggy and or some pulseaudio-jack-thingy still gets started. -- ubuntu-studio-users mailing list ubuntu-studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users