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

On Monday 01 October 2007 01:42, Marcos Guglielmetti wrote: 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? As default this file has everything commented out in Etch, 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. 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.