Hey, a few weeks ago I already wrote to this list regarding a recording issue with the Phonic Helix Board 12 Universal which could be resolved by using Jack as backend. This time, I need playback to work simultaneously and I've got some rather strange issues. On the desktop, I usually use PulseAudio as a sound server. For whatever reason, I can only play sound on this particular device while pavucontrol is running! If I close pavucontrol, about five seconds later sound is muted, i.e. I cannot hear anything while the player still plays. As soon as I open pavucontrol again, sound output is restored (it takes 2-3 seconds for the full volume to be restored, it is immediately audible on very low volume as soon as pavucontrol is opened). Using Ardour, the symptoms are: * Playback works only using ALSA directly (but recording doesn't) * Recording only works using JACK (but playback doesn't) Next, I tried Audacious with different output plugins: * It plays back using Jack * It plays back using ALSA * It plays back using pulse, but only if pavucontrol is running Then, I started Audacious with the Jack backend and started Ardour at the same time. Now I can play sound using Ardour, but I cannot record. For the sake of completeness: Linux 4.14.63 on Arch Ardour 5.12 Jack 0.5.3 Audacious 3.9 What is wrong with my device? Thank you, Andreas Böhler ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user