From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0001873]: emu10k1 AC97 loopback on left channel only. Date: Fri, 7 Apr 2006 19:25:48 +0200 Message-ID: <5fa9e0556107974ff12e9622a8cd373a@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 [85.132.177.35]) by alsa.jcu.cz (ALSA's E-mail Delivery System) with ESMTP id D5B3615C for ; Fri, 7 Apr 2006 19:25:48 +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 RESOLVED. ====================================================================== ====================================================================== Reported By: kenm Assigned To: tiwai ====================================================================== Project: ALSA - driver Issue ID: 1873 Category: PCI - emu10k1 Reproducibility: always Severity: minor Priority: normal Status: resolved Distribution: Slackware current Kernel Version: 2.6.15.3 Resolution: fixed Fixed in Version: ====================================================================== Date Submitted: 02-24-2006 00:28 CET Last Modified: 04-07-2006 19:25 CEST ====================================================================== Summary: emu10k1 AC97 loopback on left channel only. Description: Creative Labs CT4832 SBLive Value With alsa-driver versions 1.0.9b and previously, it was possible to set both "AC97" and "AC97 Capture" to full volume in alsamixer, to set up digital loopback to monitor in real time the sound recorded through "line in" via "line out". With version 1.0.10, the monitored sound appears on the left channel only. The right channel is completely muted. ====================================================================== ---------------------------------------------------------------------- kenm - 04-04-06 12:07 ---------------------------------------------------------------------- After some investigation, I now think this is an issue with AlsaMixer v1.0.10, NOT with the emu10k1 driver. It appears that alsamixer is only setting the capture source for the left-hand channel. The mixer settings stored with alsactl include: control.64 { comment.access 'read write' comment.type ENUMERATED comment.count 2 comment.item.0 Mic comment.item.1 CD comment.item.2 Video comment.item.3 Aux comment.item.4 Line comment.item.5 Mix comment.item.6 'Mix Mono' comment.item.7 Phone iface MIXER name 'Capture Source' value.0 Line value.1 Mic } Alsamixer only appears to be modifying the "value.0" entry. Editing the file manually to set "value.1 Line" and then re-loading the configuration corrects the problem, giving expected output on both channels. ---------------------------------------------------------------------- tiwai - 04-07-06 19:25 ---------------------------------------------------------------------- This bug is already fixed in the recent version. Issue History Date Modified Username Field Change ====================================================================== 02-24-06 00:28 kenm New Issue 02-24-06 00:28 kenm Distribution => Slackware current 02-24-06 00:28 kenm Kernel Version => 2.6.15.3 04-04-06 12:07 kenm Note Added: 0009113 04-07-06 19:25 tiwai Status new => resolved 04-07-06 19:25 tiwai Resolution open => fixed 04-07-06 19:25 tiwai Assigned To => tiwai 04-07-06 19:25 tiwai Note Added: 0009148 ====================================================================== ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642