From mboxrd@z Thu Jan 1 00:00:00 1970 From: "xinyun liu" Subject: Re: detect extern/internel mic Date: Fri, 11 May 2007 04:24:22 +0800 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from nz-out-0506.google.com (nz-out-0506.google.com [64.233.162.239]) by alsa0.perex.cz (Postfix) with ESMTP id 51B5E24406 for ; Thu, 10 May 2007 22:24:24 +0200 (CEST) Received: by nz-out-0506.google.com with SMTP id l8so708988nzf for ; Thu, 10 May 2007 13:24:23 -0700 (PDT) In-Reply-To: Content-Disposition: inline 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 List-Id: alsa-devel@alsa-project.org I have test on my laptop by playing a long .wav file. During playing, I plugged the external headphone, and the sound is continuously and switch from external headphone to internal speaker. It uses hda-intel driver. Does this mean it's the hardware do it? Thx 2007/5/10, Takashi Iwai : > At Thu, 10 May 2007 00:43:07 +0800, > xinyun liu wrote: > > > > It's interesting that when I plug in a headphone or an external > > microphone, the build in headphone and microphone will not work. > > > > Is it a driver feature or the hardware do it? > > > > Can anyone give some clue? I'd like to see the code but don't know how > > to start. Please give me help. Thx! > > Needs more hardware information of your device for better diagnosis. > > I guess it's a hardware, but some hda-intel drivers do that by > themselves for usability, for example. > > > Takashi >