From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0000059]: On au8820 left and right channels are swapped Date: Mon, 28 Mar 2005 04:29:07 +0200 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Received: from bugtrack.alsa-project.org (gate.perex.cz [82.113.61.162]) by alsa.alsa-project.org (ALSA's E-mail Delivery System) with ESMTP id 38592E2 for ; Mon, 28 Mar 2005 04:29:08 +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 The following issue has been UPDATED. ====================================================================== ====================================================================== Reported By: kernel_bug Assigned To: mjander ====================================================================== Project: ALSA - driver Issue ID: 59 Category: PCI - au88x0 Reproducibility: random Severity: major Priority: normal Status: assigned Distribution: Kernel Version: 2.6.2 ====================================================================== Date Submitted: 02-13-2004 11:40 CET Last Modified: 03-28-2005 04:29 CEST ====================================================================== Summary: On au8820 left and right channels are swapped Description: In most cases, left and right channels are swapped. But in approx. 5% cases all OK. Looks like the matter is somewhere in byte alignment... ====================================================================== Relationships ID Summary ---------------------------------------------------------------------- related to 0000949 Randomly, left and right tracks are swaped ====================================================================== ---------------------------------------------------------------------- kernel_bug - 02-21-04 15:40 ---------------------------------------------------------------------- If you think that i have swapped my speakers, it is not true: mixer works correctly. ---------------------------------------------------------------------- Tim - 03-02-04 02:56 ---------------------------------------------------------------------- I have exactly the same problem: Since I changed from an old OSS driver version with precompiled parts to ALSA, in more or less 95% of all cases the channels are swapped. (au8820) ---------------------------------------------------------------------- kernel_bug - 04-09-04 11:54 ---------------------------------------------------------------------- Ok, with last release (1.0.4) it works almost correctly. Channels swapped only on first playing after loading modules. After this, all works correctly. ---------------------------------------------------------------------- mjander - 04-09-04 18:35 ---------------------------------------------------------------------- This bug is believed to be fixed in latest patch posted on OpenVortex devel list. Will be sent to the ALSA guys now. ---------------------------------------------------------------------- mjander - 04-17-04 18:59 ---------------------------------------------------------------------- THis bug has been fixed in alsa-driver version beyond 1.0.4 (to be released at a unknown time). A patch is available at: http://docencia.mat.utfsm.cl/~mjander/aureal/alsa/aureal-2.6.5.diff.gz The credits for the bug discovery are for "claudia" (VortexOfSound forum). Best Regards ---------------------------------------------------------------------- kernel_bug - 04-26-04 17:04 ---------------------------------------------------------------------- Channels are still swapped (always) when you are playing something first time after loading modules. At least on my system, the following steps always result in channel swapping: 1. unload ALSA modules (I usually do it with `service alsasound stop`) 2. Load them back 3. Play the sound. ---------------------------------------------------------------------- mjander - 04-26-04 23:27 ---------------------------------------------------------------------- Could you send me more details ? I really don't understand exactly what do you mean. email: mjander(at)users[dot].sourceforge[dot]net Thanks ---------------------------------------------------------------------- jdthood - 03-10-05 15:31 ---------------------------------------------------------------------- > Channels are still swapped (always) when you are playing something > first time after loading modules. Submitter: Is this bug still present? Are the channels swapped just after the module is loaded? ---------------------------------------------------------------------- mjander - 03-10-05 16:44 ---------------------------------------------------------------------- AFAIK this bug was solved a long time ago. It was supposedly caused by a incorrect routing table initialization (bug found by Claudia). That fact, i guess, leaved some random routes interferening with other intentional routes. Did anyone still get this bug or may we close it ? Best Regards Manuel ---------------------------------------------------------------------- kernel_bug - 03-10-05 21:25 ---------------------------------------------------------------------- > Did anyone still get this bug or may we close it ? Yes, I still get this bug. Channels are swapped just after the module is loaded. First attempt to play something causes output with swapped channels, all consequent attempts cause normal output. "A long time ago" there was fixed another bug concerned with _random_ channel swap at _any_ attempt of output. Now we _always_ have swapped channels, but only when you try to output something just after the module is loaded. I use ALSA drivers from the Linux kernel 2.6.11. Thanks. ---------------------------------------------------------------------- jdthood - 03-28-05 04:27 ---------------------------------------------------------------------- > Yes, I still get this bug. Issue History Date Modified Username Field Change ====================================================================== 02-13-04 11:40 kernel_bug New Issue 02-21-04 15:40 kernel_bug Note Added: 0000280 03-02-04 02:56 Tim Note Added: 0000429 04-09-04 11:54 kernel_bug Note Added: 0000774 04-09-04 18:35 mjander Note Added: 0000777 04-17-04 18:59 mjander Status assigned => closed 04-17-04 18:59 mjander Note Added: 0000849 04-26-04 17:04 kernel_bug Status closed => feedback 04-26-04 17:04 kernel_bug Resolution open => reopened 04-26-04 17:04 kernel_bug Note Added: 0000953 04-26-04 23:27 mjander Note Added: 0000956 03-10-05 15:31 jdthood Note Added: 0003866 03-10-05 16:44 mjander Note Added: 0003867 03-10-05 21:25 kernel_bug Note Added: 0003873 03-22-05 22:33 jdthood Relationship added related to 0000949 03-28-05 04:27 jdthood Note Added: 0004235 03-28-05 04:27 jdthood Status feedback => assigned ====================================================================== ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. 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