From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?P=E9ter?= Ujfalusi Subject: Re: TWL4030 Line In/Out Loopback issue Date: Mon, 8 Aug 2011 11:56:36 +0300 Message-ID: <12887655.ftkdM18k2N@barack> References: <8CE237920E8878A-21B8-2B9F7@webmail-d033.sysops.aol.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Received: from arroyo.ext.ti.com (arroyo.ext.ti.com [192.94.94.40]) by alsa0.perex.cz (Postfix) with ESMTP id 8A124103815 for ; Mon, 8 Aug 2011 10:56:38 +0200 (CEST) In-Reply-To: <8CE237920E8878A-21B8-2B9F7@webmail-d033.sysops.aol.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: Almohanad Fayez List-Id: alsa-devel@alsa-project.org Hi, On Monday 08 August 2011 02:27:45 Almohanad Fayez wrote: > I'verealized that there is a loopback dependency between the > audioinput/output dependency with the 2.6.38 kernel running on a gumstix > overo and also using the 2.6.35 kernel running on the Beaglenboard. I can not recall seeing such an issue. > You can replicate this issue by plugging some music into the Line injack = and > then fire up alsamixer. Then you would need to modify theDAC2 Dig level, > the one on the right no the left. As you lower thevolume you'll hear your > music input decreasing and as you increase itthe music level would > increase. If you lower it enough you can captureaudio from the input jack > without hearing it out of your speaker butthe bad thing is that also > controls your speaker output so if you tryto play some sound out of > gumstix/beagleboard you won't be able to do because youneed to increase > your DAC2 Dig level in alsamixer ... it's a catch22!! I couldn't find any > solutions readily. Have you checked the state of the Left/Right Digital Loopback? Is it set to= 0? > I am running a console-only Angstrom image on both boards. I've used the > Beagleboard's line in/out capabilities with no issues using the 2.6.29 > kernel in the past so is there an update in the TWL4030 ALSA driver that I > should take into account? thanks Could you post the content of the /sys/devices/platform/soc-audio/wl4030-codec/dapm_widget file to see what's going on? -- = P=E9ter