[PlanetCCRMA] fedora 9 jack no realtime normal user

[Fernando Lopez-Lezcano]

On Mon, 2009-01-19 at 10:30 -0800, Fernando Lopez-Lezcano wrote:
> On Sun, 2009-01-18 at 22:20 -0400, francis keyes wrote:
> > Hey All,
> > 
> > I just upgraded to Fedora 9 and am finding that Jack won't start in
> > realtime mode as a normal user.  It starts fine with realtime as root.
> > The only thing I know to check is the /etc/security/limits.conf file.
> > Mine looks ok I think:
> > 
> > ## Automatically appended by jack-audio-connection-kit
> > @jackuser - rtprio 20
> > @jackuser - memlock 4194304
> > 
> > ## Automatically appended by jack-audio-connection-kit
> > @pulse-rt - rtprio 20
> > @pulse-rt - nice -20
> > 
> > 
> > Any ideas why Jack won't start with realtime priority as a normal
> > user?
> > I use qjcakctl.
> > kernel: 2.6.26.8-1.rt12.2.fc9.ccrma.x86_64.rt #1 SMP PREEMPT RT 
> > Jack:
> > jack-audio-connection-kit.x86_64
> > 0.116.1-3.fc9                                                                                        
> > jack-audio-connection-kit-example-clients.x86_64
> > 0.116.1-3.fc9                                                                                        
> > jack-rack.x86_64
> > 1.4.7-1.fc9                                                                                      
> > jackmix.x86_64
> > 0.4-1.fc9.ccrma                                                                                    
> > qjackctl.x86_64 
> 
> Fedora released a newer version of jack that is being installed instead
> of the Planet CCRMA version (the Planet CCRMA version allows all users
> by default access to realtime privileges, the Fedora version requires
> you to be in a special group as outlined by other answer in this
> thread). 
> 
> I have to again override the Fedora version so that stuff like this work
> out of the box. 

You should now be able to "upgrade" jack so that jackd priorities and
permissions for realtime scheduling will work out of the box
(hopefully :-) 

-- Fernando