From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Goldstein Subject: Re: [PATCH] ALSA: HDA: Fix mic initialization in VIA auto parser (was: pci/hda/patch_via.c - broken between 2.6.36 and 2.6.37 (bisected)) Date: Wed, 23 Mar 2011 12:58:36 +0200 Message-ID: References: <4D6223CD.4060900@canonical.com> <4D62308E.8070606@canonical.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-ew0-f51.google.com (mail-ew0-f51.google.com [209.85.215.51]) by alsa0.perex.cz (Postfix) with ESMTP id D434024463 for ; Wed, 23 Mar 2011 11:58:56 +0100 (CET) Received: by ewy28 with SMTP id 28so1884736ewy.38 for ; Wed, 23 Mar 2011 03:58:56 -0700 (PDT) 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 Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org On Wed, Mar 23, 2011 at 12:41 PM, Wolfgang Scheicher wrote: > Wolfgang Scheicher wrote: > >> David Henningsson wrote: >> >>> On 2011-02-21 09:43, Mark Goldstein wrote: >>>> [...] >>>> >>>> I've never dealt with submitting patches, so probably it'll be better >>>> (and definitely faster) if you could do it. >>>> >>>> Thank you, >>> >>> Ok, here comes the patch! >> >> Tested, and Microphone now works! Thanks a lot to everyone involved. >> Good job so far! > > Hmm ... Just tried kernel 2.6.38 from debian sid, and Microphone is not > working again. However, this fix is in. > What might have broken it this time? > I hope to find some time to track down the commit somewhen the next days ... > Wolfgang, When I was fighting with Mic issue, I used hda-analyser script. Try it and check how the pin 0x1e (Front Mic) is configured. My symptom was that this pin has been initiated with VREF Hi-Z. If you see that, try changing it to VREF 50. Mic should start working. Regards, -- Mark Goldstein