I've been trying to run a pure data patch on ubuntu server edition, it appears that alsa can see the sound card, but can't work with it. I have no /dev/dsp, but can see the device in /dev/snd and /proc/asound/cards. I've dumped some outputs here: https://gist.github.com/AJFaraday/18fc83b96b153ce2b3e9 The patch includes a chain of loadbang > del 1000 > [dsp 1( > s pd Can anyone tell me what might be wrong, I've tried a few variations on installing alsa, oss, jack and pulse Thanks Andrew Faraday