Hi all, With xoscope, each time I add a trace, it disconnect its input ports and reconnect to some default. The strange thing is than it seam to be ALSA that do that. I startx xoscope with its default input connection, which is ALSA default. As jack is running all the time, I defined ALSA default to use the jack ALSA plugin in my asoundrc: pcm.rawjack { type jack playback_ports { 0 system:playback_1 1 system:playback_2 } capture_ports { 0 system:capture_1 1 system:capture_2 } } pcm.jack { type plug slave { pcm "rawjack" } hint { description "JACK Audio Connection Kit" } } pcm.!default { type plug slave { pcm "rawjack" } } ctl.!default { type plug slave { pcm "rawjack" } } pcm.dsp { type plug slave { pcm "rawjack" } } pcm.dsp0 { type plug slave { pcm "rawjack" } } pcm.dsp1 { type plug slave { pcm "rawjack" } } # for ameter: pcm_scope.ameter { type ameter } pcm_scope_type.ameter { lib /usr/lib64/libameter.so.0.0.0 } pcm.ameter { type meter slave.pcm 'hw:4,0' # can be hw or hw:0,1 etc... scopes.0 ameter } pcm.dsp4 ameter ## At startup, xoscope get connected to system:playback_1 and system:playback_2 If I disconnect it and reconnect it to some other audio source using catia, xoscope wotk fine, but as soon I do various operations including adding a trace, it disconnect and reconnect as explained. Is it something I can do to avoid that and get xoscope to stay connected as I connect it with catia? Cheers, Dominique -- If you have a problem and you are not doing anything to fix it, you are at the heart of the problem.