2013/9/11 Marco Donnarumma &lt;devel(a)thesaddj.com <mailto:devel@thesaddj.com>> Hey all, I just switched to Mint Olivia 15 (based on Ubuntu Raring 13.04). I use quite cpu-intensive puredata patches with processing of 2 live audio inputs on a firewire soundcard through ffado and qjackctl (jack2). Although my machine runs a low-latency kernel and it has been configured for pro audio (I use the realtimeConfigurationScan script), I still get xruns and sometimes qjackctl randomly hangs up making the sound to stop completely. Before, I used to work with ubuntu 10.04 and rt-kernel without a itch. Is anybody still using a rt-kernel with the latest Mint or Ubuntu, or just refining settings etc..? if a rt-kernel is the best option, should I patch mine, since it looks like there are no packaged rt-kernels for Raring? Can't access Abogani ppa, and KXS kernels are available up to Precise. thanks in advance for any hint, or suggestions about what to try! best wishes

compiling a RT kernel is quite straightforward, BTW you can install a debian rt kernel: http://packages.debian.org/jessie/linux-image-rt-amd64 /r _______________________________________________ Linux-audio-user mailing list Linux-audio-user(a)lists.linuxaudio.org http://lists.linuxaudio.org/listinfo/linux-audio-user

wrote:

It may sound obvious, but: did you checked that your are using the "performance" governor for cpu frequency scaling? I found that using the "ondemand" governor can cause more xruns... I don't know mint but there should be a cpufreq-utils package that provides relevant utilities for this. HTH Ciao Il giorno 11/set/2013 10:53, "Marco Donnarumma" &lt;devel(a)thesaddj.com&gt; ha scritto: > Hey all, > > I just switched to Mint Olivia 15 (based on Ubuntu Raring 13.04). I use > quite cpu-intensive puredata patches with processing of 2 live audio inputs > on a firewire soundcard through ffado and qjackctl (jack2). > > Although my machine runs a low-latency kernel and it has been configured > for pro audio (I use the realtimeConfigurationScan script), I still get > xruns and sometimes qjackctl randomly hangs up making the sound to stop > completely. > > Before, I used to work with ubuntu 10.04 and rt-kernel without a itch. Is > anybody still using a rt-kernel with the latest Mint or Ubuntu, or just > refining settings etc..? > > if a rt-kernel is the best option, should I patch mine, since it looks > like there are no packaged rt-kernels for Raring? > Can't access Abogani ppa, and KXS kernels are available up to Precise. > > thanks in advance for any hint, or suggestions about what to try! > best wishes, > > -- > Marco Donnarumma > New Media + Sonic Arts Practitioner, Performer, Teacher, Director. > Embodied Audio-Visual Interaction Research Team. > Department of Computing, Goldsmiths University of London > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Portfolio: http://marcodonnarumma.com > Research: http://res.marcodonnarumma.com > Director: http://www.liveperformersmeeting.net > > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-user > >