[PlanetCCRMA] root vs capabilities

Fernando Pablo Lopez-Lezcano nando@ccrma.Stanford.EDU
Tue Jun 1 09:51:00 2004

> Linux stepdaddy 2.4.26-1.ll.rh90.ccrma #1 Fri Apr 16
> 21:56:56 PDT 2004 i686 athlon i386 GNU/Linux
> [root@stepdaddy master03]# cat
> /proc/sys/kernel/lowlatency
> 1
> I've been experiencing a greater number of xruns while
> running jack, ardour and jamin as a normal user than I
> see while working as root.
> I am puzzled. How could there be a differnce between
> the two users?
> If I understand capabilities, then in the context of
> my experience it's irrelevant what desktop I use (KDE)
> and what processes may be running as a result. Bottom
> line, everytime I attempt to work as a normal user I
> give up and run everything as su because xruns and
> disconnections from jack make it impossible to work.

How are you starting jack? What does it say when it starts? As a normal
user you should start it with the jackstart command and the "-R" flag,
like this:

  jackstart -R -d alsa -d hw

(with whatever parameters work with your card, of course). 

-- Fernando