From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: ALC650 + Mic input not working Date: Mon, 19 May 2003 11:48:59 +0200 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: References: <200305190554.HAA17705@www7.pobox.sk> Mime-Version: 1.0 (generated by SEMI 1.14.4 - "Hosorogi") Content-Type: text/plain; charset=US-ASCII Return-path: In-Reply-To: <200305190554.HAA17705@www7.pobox.sk> Errors-To: alsa-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: p z oooo Cc: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org At Mon, 19 May 2003 07:54:46 +0200, p z oooo wrote: > > Hi, > > I have MSI KT333 (VIA8233A) + ALC650. > For me, mic input is not working. > It looks like my motherboard (and some of others too) uses GPIO0 pin > of ALC650 to swich mic bias on/off. Look at ALC650AppNotes_1.4.pdf > page 3 (this is recomended connection). ALC650 rev.E doesn't need > this (and than mic is working). I tested attached patch and mic (sets > bit 0 in reg. 0x76 to 1 - gpio0 = output and bit 8 in reg. 0x76 to 1 > = set mic bias - gpio0 - on) works, but I think it is not good, > because when mic input is switched to center/LFE output, mic bias > should be set to off. hmm, i don't see any files... ;) Takashi ------------------------------------------------------- This SF.net email is sponsored by: If flattening out C++ or Java code to make your application fit in a relational database is painful, don't do it! Check out ObjectStore. Now part of Progress Software. http://www.objectstore.net/sourceforge