Re: [LAU] Realtime, but many xruns when jack is started. Debian Etch

El Lunes, 1 de Octubre de 2007 23:45, Nigel Henry escribió: | On Monday 01 October 2007 01:42, Marcos Guglielmetti wrote: | > Hi, also you can add Musix GNU/Linux's repositories (debian/etch | > compatible) | > | > # /etc/apt/sources.list Musix GNU+Linux | > deb ftp://musix.ourproject.org/pub/musix/deb/ ./ | > | > So you can install rt kernels on you Debian/ECTH, and upgrade Ardour to | > 2.1, jackd to 0.103... | > | > regards | | Sorry for replying to my previous reply with everything now snipped. | | I've downloaded, and installed kernel 2.6.21rt4, 2.6.21.5rt18, and rtirq, | but am still getting xruns when starting jackd in qjackctl. An xrun about | every 3 secs, and that's with no music apps being used. | | Is there anything else I need to do to get zero xruns when starting jackd? | | Do I need to edit /etc/security/limits.conf for example, as I had to do | for Fedora 7? Yes: sure! @audio - rtprio 99 @audio - nice -10 @audio - memlock 4000000 | As default this file has everything commented out in Etch, Bad for jackd... | but this file in Fedora 7 already had some lines for | jack-audio-connection-kit set up as default, but only with a rtprio of 20. | The updated pam that came down when installing the planetccrma low latency | kernel, left a limits.conf.rpmnew with higher priorities. I added these to | the existing limits.conf file, commenting out the defaults, and now when | starting jack on Fedora 7, I have zero xruns. Fine | I still get the odd xrun when running a music app, but nothing when jack | is started with no music apps being used. I've put a bit of jack's | messages output below. | | 23:41:07.577 Audio connection change. | 23:41:07.585 Audio connection graph change. | delay of 26942.000 usecs exceeds estimated spare time of 11397.000; | restart ... | 23:41:09.026 XRUN callback (1). | delay of 65588.000 usecs exceeds estimated spare time of 11397.000; | restart ... | delay of 12403.000 usecs exceeds estimated spare time of 11397.000; | restart ... | 23:41:09.632 XRUN callback (2 skipped). | delay of 20107.000 usecs exceeds estimated spare time of 11349.000; | restart ... | **** alsa_pcm: xrun of at least 0.044 msecs | 23:41:12.320 XRUN callback (4). | 23:41:13.728 XRUN callback (1 skipped). | delay of 70451.000 usecs exceeds estimated spare time of 11326.000; | restart ... | 23:41:14.276 XRUN callback (6). | delay of 66210.000 usecs exceeds estimated spare time of 11417.000; | restart ... | 23:41:19.406 XRUN callback (7). | delay of 66172.000 usecs exceeds estimated spare time of 11330.000; | restart ... | 23:41:24.513 XRUN callback (8). | 23:41:29.614 XRUN callback (9). | delay of 69610.000 usecs exceeds estimated spare time of 11400.000; | restart ... | 23:41:34.724 XRUN callback (10). | delay of 69546.000 usecs exceeds estimated spare time of 11390.000; | restart ... | 23:41:37.612 Client deactivated. | 23:41:37.650 JACK is stopping... | jack main caught signal 15 | no message buffer overruns | 23:41:37.736 JACK was stopped successfully. | | Any suggestions welcome as usual. | | Nigel. --      `&'       #    Marcos Guglielmetti, co-director de                     #   Musix GNU+Linux, 100% Software Libre para artistas            _#_       http://www.musix.org.ar                (#)         / O \    + archivos: ftp://musix.ourproject.org/pub/musix    ( === )   Ecología: http://autosus.wordpress.com         `---'    Personal: http://marcospcmusica.wordpress.com "Los hamsters no pueden volar" http://es.wikiquote.org/wiki/Los_Simpson_pizarra