From mboxrd@z Thu Jan 1 00:00:00 1970 From: Forest Bond Subject: Re: via82xx: unreliable audio, strange mixer behavior Date: Mon, 24 Nov 2008 15:03:06 -0500 Message-ID: <20081124200306.GA14292@storm.local.network> References: <20081120170409.GG17813@storm.local.network> <20081121120823.GD3899@storm.local.network> <20081121163256.GE3899@storm.local.network> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============4382401342590355104==" Return-path: Received: from mail3.webfaction.com (mail3.webfaction.com [70.85.44.146]) by alsa0.perex.cz (Postfix) with ESMTP id 0D85C24444 for ; Mon, 24 Nov 2008 21:03:16 +0100 (CET) In-Reply-To: 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: Takashi Iwai Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org --===============4382401342590355104== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="u3/rZRmxL6MmkK24" Content-Disposition: inline --u3/rZRmxL6MmkK24 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, On Fri, Nov 21, 2008 at 05:36:49PM +0100, Takashi Iwai wrote: > At Fri, 21 Nov 2008 11:32:56 -0500, > Forest Bond wrote: > >=20 > > On Fri, Nov 21, 2008 at 01:54:43PM +0100, Takashi Iwai wrote: > > > At Fri, 21 Nov 2008 07:08:23 -0500, > > > Forest Bond wrote: > > > > On Fri, Nov 21, 2008 at 12:59:10PM +0100, Takashi Iwai wrote: > > > > > At Thu, 20 Nov 2008 12:04:09 -0500, > > > > > Forest Bond wrote: > > > > >>=20 > > > > >> Hi, > > > > >>=20 > > > > >> I'm using snd-via82xx on an Ubuntu 8.04 system. alsa-info.sh ou= tput is here: > > > > >>=20 > > > > >> http://www.alsa-project.org/db/?f=3D1c3d5570e7b57d4d2f79b964a323= dd7b4efd7e78 > > > > >>=20 > > > > >> Here are the symptoms: > > > > >>=20 > > > > >> Audio goes away after a semi-random interval. Sometimes it retu= rns after > > > > >> `modprobe -r snd-via82xx' followed by `modprobe snd-via82xx', bu= t sometimes it > > > > >> seems to take a full reboot. > > > > >>=20 > > > > >> This looks similar to: > > > > >>=20 > > > > >> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3D3D3194 > > > > >>=20 > > > > >> Some folks think that this kind of issue is triggered by audio v= olume being > > > > >> above a certain level. I'm not entirely sure if this is true, b= ut I think it > > > > >> is. One time, I apparently triggered the issue by unplugging an= d replugging the > > > > >> audio cable from the mainboard during playback. > > > > >>=20 > > > > >> Audio can be heard even when the PCM volume level is 0 (as told = by alsamixer). > > > > >> The volume does get louder when I turn up that mixer control, bu= t it never goes > > > > >> away entirely when I turn the volume to zero. Mute works as exp= ected. > > > > >=20 > > > > > The volume 0 doesn't always mean the mute on several hardwares. > > > > > So this can be irrelevant if it happens always. > > > > >=20 > > > > > I vaguely remember about the low-power mode of some codec chips. > > > > > Which codec chip does your system have? Please run alsa-info.sh = with > > > > > --no-upload option, and attach the output file. > > > >=20 > > > > The output would be the same as what was already uploaded, right? = I've attached > > > > that output here for your convenience. > > >=20 > > > Thanks, it's always better to post the content than a URL. > > >=20 > > > Any chance to try the later version of alsa-driver? > > > Yours looks pretty old. > >=20 > > I can try this a bit later today. I'll report the results ASAP. >=20 > BTW, try the one from the URL below instead of 1.0.18a. > This contains the newest alsa-driver snapshot: > ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driv= er-snapshot.tar.gz Brief testing indicates that 1.0.18a seems to fix the issue, actually. Sor= ry, I forgot that you had asked me to test the snapshot. Would it be helpful for you for me to try the snapshot as well (maybe to ch= eck for a regression)? Any idea as to what change may have fixed this? Thanks, Forest --=20 Forest Bond http://www.alittletooquiet.net http://www.pytagsfs.org --u3/rZRmxL6MmkK24 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFJKwh6RO4fQQdv5AwRAjD8AJ0c7nSSkMpPTkKNqU05DFh56CDXCACfX0Tr O7tkdeef2JHgRyRgk8jp/AE= =lbfB -----END PGP SIGNATURE----- --u3/rZRmxL6MmkK24-- --===============4382401342590355104== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel --===============4382401342590355104==--