From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([69.77.167.62] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1JkKI8-000801-75 for garchives@archives.gentoo.org; Fri, 11 Apr 2008 14:31:48 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 81C9BE0515; Fri, 11 Apr 2008 14:30:50 +0000 (UTC) Received: from s200aog17.obsmtp.com (s200aog17.obsmtp.com [207.126.144.131]) by pigeon.gentoo.org (Postfix) with ESMTP id 0303EE0515 for ; Fri, 11 Apr 2008 14:30:49 +0000 (UTC) Received: from source ([164.129.1.35]) (using TLSv1) by eu1sys200aob017.postini.com ([207.126.147.11]) with SMTP; Fri, 11 Apr 2008 14:30:48 UTC Received: from zeta.dmz-eu.st.com (ns2.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 2CB23DB19 for ; Fri, 11 Apr 2008 14:30:17 +0000 (GMT) Received: from mail1.agr.st.com (mail1.agr.st.com [164.130.4.71]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 2BE334C09D for ; Fri, 11 Apr 2008 14:30:13 +0000 (GMT) Received: from [164.130.17.81] (ws2912.agr.st.com [164.130.17.81]) by mail1.agr.st.com (MOS 3.7.5a-GA) with ESMTP id CQO02445 (AUTH "raffaele belardi"); Fri, 11 Apr 2008 16:30:11 +0200 (CEST) Subject: Re: [gentoo-amd64] Re: sudden sound loss From: Raffaele BELARDI To: gentoo-amd64@lists.gentoo.org In-Reply-To: <5bdc1c8b0804110624y4458b711w3c83f640d1da317e@mail.gmail.com> References: <47FDFD4E.1050301@ercbroadband.org> <47FE44FC.1040905@ercbroadband.org> <5bdc1c8b0804101010l7cc95e16x44eaf3a95fa17d97@mail.gmail.com> <47FE4C4F.4030100@ercbroadband.org> <5bdc1c8b0804101043pdfacaeep2d6793d11ceac10@mail.gmail.com> <5bdc1c8b0804101245t45d95992kd1397694c99e6d8@mail.gmail.com> <47FF489F.6000007@ercbroadband.org> <1207913580.6155.26.camel@ws2912.agr.st.com> <5bdc1c8b0804110624y4458b711w3c83f640d1da317e@mail.gmail.com> Content-Type: text/plain Date: Fri, 11 Apr 2008 16:33:35 +0200 Message-Id: <1207924415.6155.35.camel@ws2912.agr.st.com> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-amd64@lists.gentoo.org Reply-to: gentoo-amd64@lists.gentoo.org Mime-Version: 1.0 X-Mailer: Evolution 2.12.3 Content-Transfer-Encoding: 7bit X-Archives-Salt: e970eb4c-3dc5-4fd3-8399-ed5660a51c33 X-Archives-Hash: 9175bbef52244a7978e2e25b579aa823 On Fri, 2008-04-11 at 06:24 -0700, Mark Knecht wrote: > The controls shown in alsamixer are based on hardware features > revealed by the driver. My guess is that the nvidia 430 doesn't have > this feature, or it's driver hasn't turned it on by default. Possibly > there is a module parameter switch that shows up with modinfo that you > could play with? > > If you think the hardware supports this feature but the driver isn't > enabling it then your best bet would be to contact the alsa developers > to look for some support. (Or do it yourself if you have the skill > set!) > > cheers, > Mark Actually it's the ADC/DAC that performs the mixing (the AD1986A in this case). I checked the chip specs, it supports spreading 2ch over 6ch so probably the feature is not yet supported by ALSA. Also some search in the Gentoo forums confirm this (http://forums.gentoo.org/viewtopic-t-414308-postdays-0-postorder-asc-start-25.html) Thanks anyway, it cleared my ideas! raf -- gentoo-amd64@lists.gentoo.org mailing list