Quoting Ismael Valladolid Torres <ivalladt@xxxxxxxxx>: > When running jackd trying to get realtime I get: > > $ jackd -R -d alsa > (...) > cannot use real-time scheduling (FIFO at priority 20) [for thread > -1228579920, from thread -1228579920] (1: Operation not permitted) > cannot use real-time scheduling (FIFO at priority 10) [for thread > -1236972624, from thread -1236972624] (1: Operation not permitted) > > ... > > # > * - rt_priority 0 > * - nice 0 > # > @audio - rt_priority 100 The limit is often referred as "rtprio" not "rt_priority", but they might be aliases for the same thing.. Does your user belong to the group "audio", and did it belong to the group when you logged in? Was this limits.conf setup in place when you logged in? Which version of libpam do you have installed? Sampo