From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261853AbVEWJSE (ORCPT ); Mon, 23 May 2005 05:18:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261874AbVEWJSE (ORCPT ); Mon, 23 May 2005 05:18:04 -0400 Received: from mx2.suse.de ([195.135.220.15]:12758 "EHLO mx2.suse.de") by vger.kernel.org with ESMTP id S261873AbVEWJR6 (ORCPT ); Mon, 23 May 2005 05:17:58 -0400 Date: Mon, 23 May 2005 11:17:57 +0200 Message-ID: From: Takashi Iwai To: Christian Parpart Cc: linux-kernel@vger.kernel.org Subject: Re: snd-intel8x0 buggy on Nvidia CK804, TYAN, AMD Opteron board? In-Reply-To: <200505221559.51729.trapni@gentoo.org> References: <200505200938.17065.trapni@gentoo.org> <200505221559.51729.trapni@gentoo.org> User-Agent: Wanderlust/2.10.1 (Watching The Wheels) SEMI/1.14.5 (Awara-Onsen) FLIM/1.14.5 (Demachiyanagi) APEL/10.6 MULE XEmacs/21.4 (patch 15) (Security Through Obscurity) (i386-suse-linux) MIME-Version: 1.0 (generated by SEMI 1.14.5 - "Awara-Onsen") Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org At Sun, 22 May 2005 15:59:51 +0200, Christian Parpart wrote: > > On Friday, 20. May 2005 10:58, Takashi Iwai wrote: > > At Fri, 20 May 2005 09:38:15 +0200, > > > > Christian Parpart wrote: > > > Hi all, > > > > > > well, I'm just trying to listen to my music, however, it's either a no-go > > > (using ALSA-OSS emulation) or just a plain pain to listen to (via ALSA > > > directly). > > > > > > In first case, I just hear nothing. A `dd if=/dev/urandom of=/dev/dsp` > > > stops at a certain byte and in my headset I hear a very high beep tone. > > > > > > in second case, the music seems very deformed and the output is very > > > buggy at all (meaning, that it played just for a few minutes). > > > deformed means, that the foreground singer has been somewhat in the very > > > background and it overall has been very unfunny to listen to. > > > > > > I was trying different players and versions anyway. > > > > > > So, is this supposed to be a bug in the kernel sound driver for my > > > certain hardware? > > > > Do you run cpufreq or something related with that? > > Nope, sorry, I even didnt install any of these cpufreq-alike tools on my host: > AMD Opteron on a TYAN board with nForce4 chipset. Well, I don't mean to activate cpufreq. Rather cpufreq may be sometimes the cause of output noises. Does the noise also on the analog loopback, e.g. CD or line-in? If yes, it's likely a problem of hardware, either the broken h/w or the bad plug/cable. Or, it's an inproper mixer configuration. To check the mixer configuration, show the contents of /etc/asound.state (it's generated via "alsactl store"), and /proc/asound/card0/codec97#0/* files. OTOH, if this happens only on PCM, it's often an interrupt problem (typically ACPI) or the influence of cpufreq... Takashi