From mboxrd@z Thu Jan 1 00:00:00 1970 From: Colin Guthrie Subject: Re: cmipci CMI8738-MC6 - left channel no sound Date: Wed, 15 Sep 2010 16:02:15 +0100 Message-ID: References: <4C89D660.4020705@gmail.com> <4C89D9E2.1070008@ladisch.de> <4C89DCD5.6040806@gmail.com> <4C89DF45.5090100@ladisch.de> <4C90DB4C.2040603@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by alsa0.perex.cz (Postfix) with ESMTP id 2F3C124480 for ; Wed, 15 Sep 2010 17:02:26 +0200 (CEST) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1OvtVB-0002lT-7c for alsa-devel@alsa-project.org; Wed, 15 Sep 2010 17:02:25 +0200 Received: from brent.tribalogic.net ([78.86.109.144]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 15 Sep 2010 17:02:25 +0200 Received: from gmane by brent.tribalogic.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 15 Sep 2010 17:02:25 +0200 In-Reply-To: <4C90DB4C.2040603@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org Cc: pulseaudio-discuss@mail.0pointer.de List-Id: alsa-devel@alsa-project.org 'Twas brillig, and Thomas Corner at 15/09/10 15:42 did gyre and gimble: > I've been going around and around on this. The surround sound 5.1 is > playing fine except channel 0 (front-left) is playing on the woofer. The > card is a Terratec Aureon fun - CMI8738-MC6. I have > gotten desperate and have tested this card in Windows and was able to > get it working right there. I have been using speaker-test to > to test the setup. I am using pulseaudio. > > This is the summary of my results with speaker-test: > > speaker-test -c 6 -D surround51 -t wav > speaker output > ---------------------- > front L silence > front R front R > center center > bass mix of front L + bass > surround L surround L > surround R surround R Smells like something is messed up with the alsa driver. Someone in alsa-devel can probably help you best here. Could be a strange mixer setting but I doubt it. > I have removed pulseaudio again (recompiled all software with optional > pulseaudio support without pulseaudio support) I should be outputting > directly to alsa and the driver now. That is massive overkill. I'd just stick with your distro's packages rather than recompiling everything and disabling PA support. The speaker test using the names surround* etc. do not use pulseaudio anyway. > Under pulseaudio speaker-test gives error messages when surround40 and > surround51 is specified. This will only be true if pulseaudio daemon is running and has the device open. Much easier to just run speaker-test as: pasuspender -- speaker-test -D surround51 ... than recompiling everything :) But ultimately it seems to be an alsa problem. All the best Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mandriva Linux Contributor [http://www.mandriva.com/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/]