From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0000935]: M-Audio Delta 1010-LT; S/PDIF out = 0Volts on device open Date: Mon, 19 Sep 2005 10:06:43 +0200 Message-ID: <85ccb8cb7df61d8824144a40a524e458@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 4566413A for ; Mon, 19 Sep 2005 10:06:43 +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: stever8 Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 935 Category: PCI - ice1712 Reproducibility: always Severity: major Priority: normal Status: new Distribution: Redhat Linux 7.3, modified Kernel Version: 2.4.26 ====================================================================== Date Submitted: 02-23-2005 20:09 CET Last Modified: 09-19-2005 10:06 CEST ====================================================================== Summary: M-Audio Delta 1010-LT; S/PDIF out = 0Volts on device open Description: Our original report: When we first load the alsa drivers, we see a S/PDIF output signal from the 1010LT on an oscilloscope. A minidisc player also sees this as a valid signal (it is all zeros, silence). As soon as our program opens the audio device, however, the signal goes to 0V on the oscilloscope, and the minidisc of course sees "no signal". We can't output S/PDIF, no matter what settings we try in Envy24control. Strangely enough, if we do the following, we do get S/PDIF output : . Plug in an external S/PDIF input source (which is muted so as not to mix with our sound). . In Envy24control, set the Master Clock to "Word Clock". (it doesn't work if the master clock is set to "S/PDIF") Jaroslav Kysela suggested: Strange. Could you try to comment lines: //if (reset) // snd_cs8427_reset(cs8427); in alsa-kernel/i2c/cs8427.c and test if the signal is present after this change? Which I did. The S/PDIF signal no longer goes away (it appears on the scope, and the minidisc player recognizes it as a valid signal) however it just contains silence. ====================================================================== ---------------------------------------------------------------------- jdthood - 09-19-05 10:06 ---------------------------------------------------------------------- stever8: Were you able to solve this problem? Have you tried playing with the various mixer switches listed by amixer? Issue History Date Modified Username Field Change ====================================================================== 02-23-05 20:09 stever8 New Issue 02-23-05 20:09 stever8 Distribution => Redhat Linux 7.3, modified 02-23-05 20:09 stever8 Kernel Version => 2.4.26 09-19-05 10:06 jdthood Note Added: 0006284 ====================================================================== ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php