I'm using a Pi to auto run a script that runs pd-extended in nogui made on startup. On start up, the script appears to run fine, no errors in the log, but there's no sound. If I stop that process and then run the same script again manually, it runs fine and there is sound. I've tried putting a 1 sec delay between loadbang and dsp in the patch as suggested elsewhere, and I've also tried running the login script from both crontab and /etc/rc.local, both with the same results. Any suggestions?