From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0001713]: ALC260 no input Date: Wed, 1 Mar 2006 06:16:37 +0100 Message-ID: <413f886c8f06b3a44ec009d45d8b9c50@bugtrack.alsa-project.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from bugtrack.alsa-project.org (gate.perex.cz [85.132.177.35]) by alsa.jcu.cz (ALSA's E-mail Delivery System) with ESMTP id 9FC391CD for ; Wed, 1 Mar 2006 06:16:37 +0100 (MET) Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org A NOTE has been added to this issue. ====================================================================== ====================================================================== Reported By: hweigel Assigned To: tiwai ====================================================================== Project: ALSA - driver Issue ID: 1713 Category: PCI - hda-intel Reproducibility: always Severity: minor Priority: normal Status: assigned Distribution: Kernel Version: ====================================================================== Date Submitted: 01-04-2006 17:24 CET Last Modified: 03-01-2006 06:16 CET ====================================================================== Summary: ALC260 no input Description: My FSC Lifebook S-7020 has the ALC260. While all sound output seems to work fine with alsa 1.0.10, the microphone produces only very weak sound (just infinitesimally more than zero). ====================================================================== ---------------------------------------------------------------------- rlrevell - 03-01-06 01:27 ---------------------------------------------------------------------- Any improvement with later releases (1.0.11-rc3 or CVS)? ---------------------------------------------------------------------- jwoithe - 03-01-06 06:16 ---------------------------------------------------------------------- hweigel: I bet the microphone you're using is a condensor type. Most small "made for computers" microphones fall into this category. They require a small DC bias to be supplied by the computer before they will operate. The version of the ALC260 driver now in CVS includes support to turn this bias on if you need it. Get the latest CVS version or wait for 1.0.11 to be released. Get this compiled and loaded. Then go to alsamixer, find the control labeled "Mic/Line jack mode" and set it to "Mic 80pc bias". Once done, try capturing again; it should work much better. Note that the "mic jack mode" control is not AFAIK in 1.0.11-rc3 - you will need a reasonably recent CVS snapshot. Issue History Date Modified Username Field Change ====================================================================== 01-04-06 17:24 hweigel New Issue 03-01-06 01:27 rlrevell Note Added: 0008257 03-01-06 06:16 jwoithe Note Added: 0008271 ====================================================================== ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642