From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pedro Ribeiro Subject: Audio4DJ (snd-usb-caiaq) noise when using DVB usb adapter Date: Tue, 2 Mar 2010 00:45:04 +0000 Message-ID: <74fd948d1003011645l3b595442qde58b6263b4ce710@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Return-path: Sender: linux-media-owner@vger.kernel.org To: alsa-devel@alsa-project.org, Daniel Mack , linux-media@vger.kernel.org List-Id: alsa-devel@alsa-project.org Hi all, I'm encountering a problem with the Audio4DJ audio card with a DVB USB adapter (Win-TV NOVA-T USB2 STICK). The problem is strange because it only happens after I disconnect and reconnect the audio card. Procedure 1: - boot from fresh - plug the DVB adapter - plug the Audio4DJ Everything works correctly - meaning I can watch TV and my audio is fine. Procedure 2: - boot from fresh - plug the Audio4DJ - plug the DVB adapter The audio starts cracking every few seconds, and constantly if I use jackd. Procedure 3: - boot from fresh - plug the DVB adapter - plug the Audio4DJ (everything is correct, as above in Procedure 1) - unplug the Audio4DJ - plug it again Cracking audio. I'm insisting in "boot from fresh" because from now on (that is, from the moment that I unplug the Audio4DJ) I always get cracking audio. rmmod'ing the snd-usb-caiaq and the usb-dvb modules produces the same result. I have to boot from fresh and do Procedure 1 for it to work OK. Can anyone please give a hint on how to debug this? (Please CC me directly as I'm not in both lists). Regards, Pedro