Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756958AbZCQUqZ (ORCPT ); Tue, 17 Mar 2009 16:46:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756536AbZCQUqG (ORCPT ); Tue, 17 Mar 2009 16:46:06 -0400 Received: from ns1.suse.de ([195.135.220.2]:49385 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756820AbZCQUqD (ORCPT ); Tue, 17 Mar 2009 16:46:03 -0400 Date: Tue, 17 Mar 2009 21:32:16 +0100 Message-ID: From: Takashi Iwai To: Andreas Mohr Cc: Maxim Levitsky , linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org, Kernel Testers List Subject: Re: [alsa-devel] Bugs on aspire one A150 In-Reply-To: <20090317161828.GA32756@rhlx01.hs-esslingen.de> References: <20090316173000.GA25647@rhlx01.hs-esslingen.de> <20090316180638.GB25647@rhlx01.hs-esslingen.de> <20090316212227.GA29471@rhlx01.hs-esslingen.de> <20090317100500.GA16029@rhlx01.hs-esslingen.de> <20090317103845.GA26007@rhlx01.hs-esslingen.de> <20090317104755.GA1446@rhlx01.hs-esslingen.de> <20090317161828.GA32756@rhlx01.hs-esslingen.de> User-Agent: Wanderlust/2.12.0 (Your Wildest Dreams) SEMI/1.14.6 (Maruoka) FLIM/1.14.7 (=?ISO-8859-4?Q?Sanj=F2?=) APEL/10.6 Emacs/22.3 (x86_64-suse-linux-gnu) MULE/5.0 (SAKAKI) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2524 Lines: 64 At Tue, 17 Mar 2009 17:18:28 +0100, Andreas Mohr wrote: > > Hi, > > On Tue, Mar 17, 2009 at 12:25:13PM +0100, Takashi Iwai wrote: > > At Tue, 17 Mar 2009 11:47:55 +0100, > > Andreas Mohr wrote: > > > > Fortemedia device names include FM2018-380, not sure yet which one is in > > > > Aspire One. > > > > > > > > http://www.fortemedia.com/products/index.htm > > > > ( especially http://www.fortemedia.com/products/fm1182.htm ) > > > > > > http://www.wpgholdings.com/event/S/SACg_04_ForteMedia_SAM.pdf > > > mentions "FM201x" and www.sacg.com.tw (this one could be useful!). > > > Searching Google "FM201[0-9] Fortemedia" comes up with FM2010 and > > > FM2018 and thus > > > http://www.hengdasheng.com.cn/uploadfile/391/cfile/2008102414057847.pdf > > > which is a relatively informative datasheet. > > > > I'm not sure whether FM2018 is on a netbook. Rather my guess is it's > > a digital-mic component by FortMedia together with their software > > library for SAM handling. > > I had the same thoughts later. Since they use an extensive SAM handling > library, there probably isn't such a chip, otherwise they probably > wouldn't need it ;) > Could you thus implement a nice beam-forming sound evaluation SAM > library for ALSA pretty pretty please? ;) A patch please :) > ...or, is that SAM library available to us given that it exists in the > factory install? If so, then one should probably make good use of it... An easy one would be a relatively simple algorithm, but I don't know whether any free library code. Better to ask on LAD. > > BTW, a simple "fix" for the mono capture problem, you can patch > > the config file for HD-audio in alsa-lib like below. Then the first > > channel will be used for mono capture instead of averages. > > Give it a try. > > > > (But, this won't fix programs that prefer "hw" access such as > > pulseaudio, of course.) > > I'm not *quite* sure whether this is really what you meant, > but I patched /usr/share/alsa/cards/HDA-Intel.conf (libasound2 > 1.0.18-1ubuntu7) in exactly this way and then did > arecord -Dplughw:0 -fdat -c1 test.wav; aplay test.wav > but well, with equal slider positions there was no audio again. Don't use -Dplughw:0. Then the default setup will be used. % arecord -fdat -c1 test.wav Takashi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/