thank-you all for your advices! even if i start jack as non-root user without the realtime option the program tell me "could not connect to jack server as client". this is the message board --------------------------------------------------------------- 20:06:02.725 Patchbay deactivated. 20:06:02.838 Statistics reset. 20:06:02.851 JACK is starting... 20:06:02.851 /usr/bin/jackd -m -dalsa -r44100 -p512 -n2 -D -C/dev/dsp -P/dev/dsp -i2 -o2 20:06:02.996 JACK was started with PID=12301 (0x300d). jackd 0.99.0 Copyright 2001-2003 Paul Davis and others. jackd 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 loading driver .. apparent rate = 44100 creating alsa driver ... /dev/dsp|/dev/dsp|512|2|44100|2|2|nomon| swmeter|-|32bit ALSA lib pcm.c:2084:(snd_pcm_open_noupdate) Unknown PCM /dev/dsp ALSA lib pcm.c:2084:(snd_pcm_open_noupdate) Unknown PCM /dev/dsp ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode cannot load driver module alsa 20:06:03.116 JACK was stopped successfully. 20:06:03.121 MIDI connection graph change. 20:06:03.199 MIDI connection change. 20:06:05.211 Could not connect to JACK server as client. --------------------------------------------- thanx, emanuele
