Hi Jeremy, Jy and Peder Your right, i've got two files now, /etc/security/limits.d/audio.conf and /etc/security/limits.conf should i delete the former one ? Here's the new one : # generated by jackd's postinst. # # Do not edit this file by hand, use # # dpkg-reconfigure -p high jackd # # instead. @audio - rtprio 99 @audio - memlock unlimited #@audio - nice -19 I also changed the priority to 70 in jack setup. Let's see the result. I've also notice that after an upgrade trackerd load the CPU to 100 % so i killed it. What do you think about it ? Best regards. YaN ______________________________________________ > Linux-audio-user mailing list > Linux-audio-user@xxxxxxxxxxxxxxxxxxxx > http://lists.linuxaudio.org/listinfo/linux-audio-user _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user