From mboxrd@z Thu Jan 1 00:00:00 1970 From: pr0t0cod7 Subject: Intel HDA digital out distortion Date: Wed, 3 Oct 2007 22:18:46 +0200 Message-ID: <20071003221846.7bc851b9@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from smtp3-g19.free.fr (smtp3-g19.free.fr [212.27.42.29]) by alsa0.perex.cz (Postfix) with ESMTP id C125524534 for ; Wed, 3 Oct 2007 22:18:48 +0200 (CEST) Received: from smtp3-g19.free.fr (localhost.localdomain [127.0.0.1]) by smtp3-g19.free.fr (Postfix) with ESMTP id 5D8B017B529 for ; Wed, 3 Oct 2007 22:18:48 +0200 (CEST) Received: from localhost (lib59-2-82-237-111-76.fbx.proxad.net [82.237.111.76]) by smtp3-g19.free.fr (Postfix) with ESMTP id 2272317B52F for ; Wed, 3 Oct 2007 22:18:48 +0200 (CEST) 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 Hi, On Monday 23 July 2007 23:09:24 Ingmar Stieger wrote: > a couple of weeks ago, I bought an ASUS mainboard with integrated > Intel > HDA and an AD1988B codec. Unfortunately, the digital / SPDIF output > gets distorted with stock 1.0.14 drivers. It does not matter what the > volume levels of the various mixers are set to. I have the same issues. Any sound is distorted through spdif output (seems more pronounced with low frequencies.) Sound is not distorted: - using passthough (playing AC3) - when volume is set to the very minimal (no perceptible distortion) - with analog output My motherboard: ASUS P5B deluxe with integrated soundchip Kernel: 2.6.22 Alsa: Intel HD audio kernel built module asound.conf: http://pastebin.com/f2c54b47b > I think I might have found the source for this problem. Maybe it's > only a workaround, but it solved the issue and digital out now works > fine for me, so I thought I'd share. The patch worked for me, no more distortion :) Thanks for sharing, Alex.