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As you will see from the error message, jackd requires a minimum rtprio of 60 Cannot use real-time scheduling (RR/60)(1: Operation not permitted) AcquireSelfRealTime error Suggest modifying the contents of 99-jack.conf to read: # Default limits for users of jack-audio-connection-kit @jackuser - rtprio 99 @jackuser - memlock 4194304 @jackuser - nice -10 @pulse - rtprio 20 @pulse - nice -20 Also users should be added to both jackuser and pulse-rt groups
Hi Simon, What jack version, and what kernel version (Fedora kernel or CCRMA's RT kernel) are you using? rpm -q jack-audio-connection-kit rpm -qa |grep krenel uname -r By adding your user to jackuser group, you should be able to run jackd without modifying the contents of the limits file. This is explained in the file /usr/share/doc/jack-audio-connection-kit-1.9.6/README.Fedora And we simply can't add all users to those groups by default for security reasons. Only those users who really need the privileges need to be included in those groups.
Hi Orcan My initial approach was to add all users to jackuser as suggested in the README.Fedora but this do not give rt access to jackd. Also there is no pulse-rt group in Fedora 14 only pulse and pulse-access (Strange as fc12 & fc13 had this group). bash-4.1$ rpm -q jack-audio-connection-kit jack-audio-connection-kit-1.9.6-2.fc14.x86_64 jack-audio-connection-kit-1.9.6-2.fc14.i686 bash-4.1$ rpm -qa | grep kernel kernel-rt-2.6.33.6-147.2.4.rt28.1.fc13.ccrma.x86_64 kernel-rt-2.6.33.7-149.rt30.1.fc13.ccrma.x86_64 kernel-rt-2.6.33.7-149.rt30.1.fc14.ccrma.x86_64 kernel-headers-2.6.35.10-74.fc14.x86_64 kernel-devel-2.6.34.7-63.fc13.x86_64 kernel-2.6.34.7-61.fc13.x86_64 kernel-2.6.34.7-66.fc13.x86_64 kernel-devel-2.6.34.7-61.fc13.x86_64 kernel-devel-2.6.34.7-66.fc13.x86_64 kernel-2.6.34.7-63.fc13.x86_64 kernel-2.6.35.10-74.fc14.x86_64 abrt-addon-kerneloops-1.1.14-1.fc14.x86_64 kernel-devel-2.6.35.10-74.fc14.x86_64 bash-4.1$ bash-4.1$ uname -r 2.6.35.10-74.fc14.x86_64 bash-4.1$ How about a simple qt app to set all the configuration options suggested in the README.fedora? KXStudio has this... Regards, Simon
(In reply to comment #2) > Hi Orcan > > My initial approach was to add all users to jackuser as suggested in the > README.Fedora but this do not give rt access to jackd. Hi Simon, That's odd. It should work after you add your user to the jackuser group and re-login. > Also there is no > pulse-rt group in Fedora 14 only pulse and pulse-access (Strange as fc12 & > fc13 had this group). > Hmm, that means the documentation needs an update. I am open to patches. I don't know personally what replaced the pulse-rt group in Fedora 14. I don't use pulseaudio, and as it seems, the communication between me and the pulseaudio maintainer is not the best; and obviously I did not write that part of the documentation. > bash-4.1$ rpm -q jack-audio-connection-kit > jack-audio-connection-kit-1.9.6-2.fc14.x86_64 > jack-audio-connection-kit-1.9.6-2.fc14.i686 > > bash-4.1$ rpm -qa | grep kernel > kernel-rt-2.6.33.6-147.2.4.rt28.1.fc13.ccrma.x86_64 > kernel-rt-2.6.33.7-149.rt30.1.fc13.ccrma.x86_64 > kernel-rt-2.6.33.7-149.rt30.1.fc14.ccrma.x86_64 > kernel-headers-2.6.35.10-74.fc14.x86_64 > kernel-devel-2.6.34.7-63.fc13.x86_64 > kernel-2.6.34.7-61.fc13.x86_64 > kernel-2.6.34.7-66.fc13.x86_64 > kernel-devel-2.6.34.7-61.fc13.x86_64 > kernel-devel-2.6.34.7-66.fc13.x86_64 > kernel-2.6.34.7-63.fc13.x86_64 > kernel-2.6.35.10-74.fc14.x86_64 > abrt-addon-kerneloops-1.1.14-1.fc14.x86_64 > kernel-devel-2.6.35.10-74.fc14.x86_64 > > bash-4.1$ bash-4.1$ uname -r > 2.6.35.10-74.fc14.x86_64 > bash-4.1$ > I see that you have the rt kernel installed. Does rt work when using that kernel? > How about a simple qt app to set all the configuration options suggested in > the README.fedora? KXStudio has this... > Are you asking me to write such an application? I don't think I have time for this. But if you have time, write it up, submit it to Fedora for review, I'll take a look. Cheers, Orcan.
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