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Message-Id: <200210270018.g9R0I1UF034903@www.freebsd.org>
Date: Sat, 26 Oct 2002 17:18:01 -0700 (PDT)
From: Kevin Van Maren <kevin.vanmaren@unisys.com>
To: freebsd-gnats-submit@FreeBSD.org
Subject: pcm driver generates static half the time
X-Send-Pr-Version: www-1.0

>Number:         44512
>Category:       kern
>Synopsis:       [sound] pcm driver generates static half the time [4.7]
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-multimedia
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Oct 26 17:20:01 PDT 2002
>Closed-Date:    Sun Sep 11 19:02:57 GMT 2005
>Last-Modified:  Sun Sep 11 19:02:57 GMT 2005
>Originator:     Kevin Van Maren
>Release:        4.7-stable
>Organization:
>Environment:
FreeBSD 4.7-RC
>Description:

sbc0: <ESS ES1869 (Compaq OEM)> at port 0x220-0x22f,0x388-0x38b,0x330-0x331 irq 5 drq 1,5 on isa0
pcm0: <ESS 18xx DSP> on sbc0

Running -stable on Compaq Armada 1750 notebook computer.
The pnp sbc driver finds the ess sound card and attaches pcm.
However, the sound sometimes (> 50%) comes out as static.
Perhaps there is something funny required to initialize or
set the mode for the card?


>How-To-Repeat:
That is the tough one.  It occurs seemingly at random; if if works,
it seems to stay working while the device is open, but may fail on
the next use.  KDE seems to be more likely to fail that pcmplay, but
KDE often works.  suspend/resume kicks the card, so it may start or
stop working as well.

>Fix:
Unknown.  Is there anything I can do to help track down the problem?


>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->sound 
Responsible-Changed-By: kris 
Responsible-Changed-When: Sun Jul 13 02:50:17 PDT 2003 
Responsible-Changed-Why:  
Assign to sound maintainers 

http://www.freebsd.org/cgi/query-pr.cgi?pr=44512 

From: Worldeater <shreds-of-sanity@gmx.net>
To: bug-followup@freebsd.org, kevin.vanmaren@unisys.com
Cc:  
Subject: Re: kern/44512: [sound] pcm driver generates static half the time [4.7]
Date: Wed, 04 May 2005 03:23:50 +0200

 I had exactly the same problem (occasional white noise) with an es1373  
 based soundcard on a BX440 based mainboard. The problem occured under  
 Windows2k and FreeBSD 5.4. My workaround was to set the PCI latency timer  
 in the BIOS from "0" to "16".
 
 HTH
 
   -- Flo
 
 
State-Changed-From-To: open->feedback 
State-Changed-By: netchild 
State-Changed-When: Sun Sep 11 13:43:25 GMT 2005 
State-Changed-Why:  
Do you still see this with a recent -current? 

http://www.freebsd.org/cgi/query-pr.cgi?pr=44512 
State-Changed-From-To: feedback->closed 
State-Changed-By: netchild 
State-Changed-When: Sun Sep 11 19:02:21 GMT 2005 
State-Changed-Why:  
Originator address bounces (no reason given, just a failure notice). 

If someone has the same problem, please open a new PR. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=44512 
>Unformatted:
