From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lee Revell Subject: Re: [noise] The noise problem wrt Audigy 2 ZS Date: Mon, 24 Oct 2005 00:18:50 -0400 Message-ID: <1130127531.16563.5.camel@mindpipe> References: <1130080668.10270.3.camel@localhost> <1130084827.11980.12.camel@mindpipe> <1130112868.10270.11.camel@localhost> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1130112868.10270.11.camel@localhost> Sender: alsa-user-admin@lists.sourceforge.net Errors-To: alsa-user-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: pomac@vapor.com Cc: ALSA user list , alsa-devel List-Id: alsa-devel@alsa-project.org Please make sure to cc: the ALSA lists. On Mon, 2005-10-24 at 02:14 +0200, Ian Kumlien wrote: > On Sun, 2005-10-23 at 12:27 -0400, Lee Revell wrote: > > On Sun, 2005-10-23 at 17:17 +0200, Ian Kumlien wrote: > > > Hi, > > > > > > I have found a bunch of topics on this now: > > > Squealing / Buzzing / Static noise with EMU10k1 and Audigy 2 ZS > > > https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1276 > > > > How are you able to access this site at all? bugtrack.alsa-project.org > > has been giving me "Connection refused" for days. > > It worked before, both from here and from a friends place... > > > Can you repost the text of the bug report? > > Someone else did. > > The interesting part of this is that it almost works for a while, if you > really work at it, you *can* get it to work sometimes. It feels like it > depends on where in the memory "things" are located, and by things i > mean either the kernel module or the app itself, i dunno which. > > You can also hear more or less of the actual sound with the noise, > sometimes you don't hear any of it and sometimes you hear some of it. > Hmm. You mentioned this bug only occurs on 64 bit machines or with more than 1GB of memory. Maybe it can only DMA into the first 1GB of memory or something. Try this patch. --- include/sound/emu10k1.h~ 2005-10-11 12:31:42.000000000 -0400 +++ include/sound/emu10k1.h 2005-10-24 00:14:40.000000000 -0400 @@ -48,7 +48,7 @@ /* FIXME? - according to the OSS driver the EMU10K1 needs a 29 bit DMA mask */ #define EMU10K1_DMA_MASK 0x7fffffffUL /* 31bit */ -#define AUDIGY_DMA_MASK 0xffffffffUL /* 32bit */ +#define AUDIGY_DMA_MASK 0x7fffffffUL /* 32bit */ #define TMEMSIZE 256*1024 #define TMEMSIZEREG 4 ------------------------------------------------------- This SF.Net email is sponsored by the JBoss Inc. Get Certified Today * Register for a JBoss Training Course Free Certification Exam for All Training Attendees Through End of 2005 Visit http://www.jboss.com/services/certification for more information