I had a lot of latency problems running Ubuntu 8.10 with a realtime kernel. And nothing changed modifying the limits.conf file and adding myself to the audio group. So I decided to install Musix. I think it is the best distro for audio-linux ever. At first glance it looks rather messy but it works as smooth as a Mercedes-Benz.

I've reached latencies of 3 ms. with no trace of xrun nor clicks in the audio, while in Ubuntu I just could barely get close to 25 ms which was insane. I cannot recommend anything else. Trust me.

Good luck!



2009/5/27 Thomas Kerstgens <thomas_kerstgens@web.de>
Hi Tom,

I just went fine with the instructions on the jack-faq-page (http://jackaudio.org/faq). Did you add these lines to your /etc/security/limits.conf ?:
------------------
@audio   -  rtprio     99
@audio   -  memlock    unlimited
@audio   -  nice      -19
------------------
 Do not forget to add yourself to the group 'audio' and re-login. This in combination with the rt-kernel works great for me.

Regards, Thomas

> could someone point me in the direction to a guide on setting up rt-
> kernel on ubuntu jaunty. i'm having trouble getting qjackctl started
> in realtime mode despite the fact that i am running 2.6.28-3-rt #12-
> Ubuntu SMP PREEMPT RT. i've done this in other distros but i must be
> missing something here.
>
> thanks.
>
> t

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