> > I also have edited /etc/security/limits.conf as found on the web. > > It now contains something like > > > > @audio ? ? ? ? ?- ? ? ? rt_priority ? ? 95 > > @audio ? ? ? ? ?- ? ? ? nice ? ? ? ? ? ?-10 > > @audio ? ? ? ? ?- ? ? ? memlock ? ? ? ? 300000 > > > > but to be honest I have no clue which app read or use this. > > PAM. Thanks a lot. I always denied to get familiar with PAM, but it looks like there's no way around it ;-) . Best regards ce