From mboxrd@z Thu Jan 1 00:00:00 1970 From: jamesmstone@gmail.com Subject: emu10k1 ALSA/jack problem Date: Fri, 10 Aug 2007 12:10:45 +0100 Message-ID: <20070810111045.GA3741@moon.base> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from fk-out-0910.google.com (fk-out-0910.google.com [209.85.128.188]) by alsa0.perex.cz (Postfix) with ESMTP id 76245243D5 for ; Fri, 10 Aug 2007 13:10:49 +0200 (CEST) Received: by fk-out-0910.google.com with SMTP id f40so722309fka for ; Fri, 10 Aug 2007 04:10:48 -0700 (PDT) Received: from james by moon.base with local (Exim 4.63) (envelope-from ) id 1IJSOD-0000yZ-5A for alsa-devel@alsa-project.org; Fri, 10 Aug 2007 12:10:45 +0100 Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Dear All, I am currently working on an audio program (aldrin) which uses libbzub driver http://trac.zeitherrschaft.org/zzub/browser/trunk/src/libzzub/driver.cpp for accessing the sound card. Libzzub, in turn uses rtaudio version 3.03, which is part of the libzzub source tree. The problem arises when I am running a jack server using my sblive, but specifying the default interface (hw:0). On startup, a vast number of xruns are generated (>200) and jack either falls over, or the computer almost completely locks up. This appears to be caused by rtaudio probing the alsa devices whilst jack is running. Interestingly, if I specify a sub-device (hw:0,3), or the integrated sound card (intel), no xruns are generated. I am wondering if this problem is arising because of a bug in the emu10k1 driver, or a problem with the way rtaudio probes alsa devices, or because it is a bad idea to probe alsa devices while they are being used by jack??? Best wishes, James