From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0000818]: Web browsing in Mozilla causes ADAT clocks on HDSP 9652 to be invalid Date: Thu, 29 Sep 2005 00:30:50 +0200 Message-ID: <9a45baed110dada2be9543a42ad97395@bugtrack.alsa-project.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from bugtrack.alsa-project.org (gate.perex.cz [82.113.61.162]) by alsa.jcu.cz (ALSA's E-mail Delivery System) with ESMTP id 2B3F8163 for ; Thu, 29 Sep 2005 00:30:51 +0200 (MEST) Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org A NOTE has been added to this issue. ====================================================================== ====================================================================== Reported By: Mark Knecht Assigned To: charbonnel ====================================================================== Project: ALSA - driver Issue ID: 818 Category: PCI - RME HDSP Reproducibility: always Severity: major Priority: normal Status: feedback Distribution: FC2 Kernel Version: 2.6.8.1-1.520.2vS7.ll.rhfc2.ccrma ====================================================================== Date Submitted: 01-14-2005 18:35 CET Last Modified: 09-29-2005 00:30 CEST ====================================================================== Summary: Web browsing in Mozilla causes ADAT clocks on HDSP 9652 to be invalid Description: In my setup I's using 3 computers: 1) PanetCCRMA with HDSP 9652 as the center of an audio hub 2) Win XP GigaStudio with Hammerfall Light - two ADAT outputs streaming to HDSP 9652 (ADAT input for clock) 3) Win XP Pro Tools Digi 002 Rack receiving GigaStudio audio from PC #2 So the signal flow looks like: XP Linux XP GSt ====> HDSP 9652 ====> Pro Tools <=== (ADAT Clock) The HDSP 9652 is the master clock for the network. Both XP machine sync to the HDSP 9652. When no specific audio apps are running on the Linux box then this configuration will work for hours if not days with no problems. All audio data from GSt flows through the HDSP 9652's hardware and the hardware mixer sends it on to the Pro Tools box. It works perfectly. When Mozilla is started and I switch from page to page, after a few minutes I will receive a message on the Pro Tools box that the clock supplied by the HDSP 9652 was invalid. I can browse the same web pages on either XP box and I do not corrupt the clocks. ====================================================================== ---------------------------------------------------------------------- jdthood - 09-19-05 09:58 ---------------------------------------------------------------------- > Thomas, could you check the patch I sent ago in alsa-devel ML? > This adds 'sample clock lock' control like ice1712 driver. charbonnel: Did you try the patch? ---------------------------------------------------------------------- Mark Knecht - 09-29-05 00:30 ---------------------------------------------------------------------- As of recent kernels, ala 2.6.14-rc2 the problem still occurs. I've learned to live with Jack running and the HDSP 9652 set ass the second card. I let the onboard sound chip be the default device. All low-quality or OSS sound goes through the on-board chip, out through a cable and back into the HDSP 9652 using a stereo input on an external A/D. This works great for me in general. I don't have an example right now but if I forget to turn on Jack then I see the dmesg log filling up with messages about HDSP : unable to change clock rate. Every time it tries that I get the horrible loud noise. Anyway, it's not 'fixed' or 'patched' as far as I can tell. Issue History Date Modified Username Field Change ====================================================================== 01-14-05 18:35 Mark Knecht New Issue 01-14-05 18:35 Mark Knecht Distribution => FC2 01-14-05 18:35 Mark Knecht Kernel Version => 2.6.8.1-1.520.2vS7.ll.rhfc2.ccrma 02-01-05 21:35 charbonnel Note Added: 0003466 02-01-05 21:46 Mark Knecht Note Added: 0003470 02-01-05 22:03 rlrevell Note Added: 0003471 02-01-05 22:07 charbonnel Status assigned => resolved 02-01-05 22:07 charbonnel Resolution open => not an issue 02-01-05 22:07 charbonnel Note Added: 0003472 02-01-05 22:12 Mark Knecht Status resolved => feedback 02-01-05 22:12 Mark Knecht Resolution not an issue => reopened 02-01-05 22:12 Mark Knecht Note Added: 0003474 02-02-05 10:20 tiwai Note Added: 0003477 09-19-05 09:58 jdthood Note Added: 0006277 09-29-05 00:30 Mark Knecht Note Added: 0006411 ====================================================================== ------------------------------------------------------- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl