Zarnick,
Using jackd like you do ‘jackd -R -n peacemaker -v -d alsa’ implies default values for the framerate and number of periods, respectively 1024 and 2.
1- try fiddling around with these parameters (-p framerate -n #periods )
2- check your rlimits config. In /etc/security/limits.conf, I have this :
@audio - nice -10
@audio - rtprio 99
@audio - memlock unlimited
This requires a recent PAM lib which slackware most likely has. This also implies that you have a unix group called ‘audio’ and that you belong to that group. In a shell, type ‘id’ and check what group you are belonging to.
I don’t know how slackware manages its groups and users by default. Debian based distros (which I use) come with this group out of the box, with a GID of 29. If you want to create such a group, then you can use the KDE user and group admin interface (System Settings -> User Management -> enter the administrator mode, add a group with this GID and add yourself in that group). But then, you would have to set up udev rules for the /dev/snd so that they belong to the group audio. E.g. on my system :
ls -l /dev/snd results in
crw-rw---- 1 root audio 116, 5 2007-10-09 09:10 controlC0
crw-rw---- 1 root audio 116, 4 2007-10-09 09:10 hwC0D0
crw-rw---- 1 root audio 116, 3 2007-10-09 09:10 seq
crw-rw---- 1 root audio 116, 2 2007-10-09 09:10 timer
3- kernel : was it compiled with realtime or low latency patches ?
