From aaron@chillig.lo-res.org  Sat Sep 29 12:33:52 2001
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Date: Tue, 25 Sep 2001 04:48:06 +0200 (CEST)
From: aaron <aaron@lo-res.org>
Reply-To: aaron <aaron@lo-res.org>
To: FreeBSD-gnats-submit@freebsd.org
Cc:
Subject: t4dwave on Acer Alladin M5451 interrupt problem
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>Number:         30917
>Category:       i386
>Synopsis:       t4dwave on Acer Alladin M5451 interrupt problem
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Sep 29 12:40:00 PDT 2001
>Closed-Date:    Sat Sep 29 12:43:46 PDT 2001
>Last-Modified:  Sat Sep 29 12:43:59 PDT 2001
>Originator:     aaron
>Release:        FreeBSD 4.4-RELEASE i386
>Organization:
home
>Environment:
System: FreeBSD chillig.lo-res.org 4.4-RELEASE FreeBSD 4.4-RELEASE #1: Tue Sep 25 04:32:19 CEST 2001 root@chillig.lo-res.org:/usr/src/sys/compile/chillig i386


	
>Description:
	Running an Acer TravelMate 512TE.
        sound output is only _sometimes_ possible.

        The TravelMate uses an Acer M5451 sound chip. however if I kldload
        snd_t4dwave.ko I sometimes get the message:
         pcm0: play interrupt timeout, channel dead
        
        I highly assume this is because of IRQ sharing between the soundcard
        and the graphics card (both are on IRQ 10), grfx card is:
         ATI Rage Mobility Pro

        On other occasions sound will work - but only for the first time.
        After opening the device and closing it the next open will result 
        in no sound output.

        I did a comparison: 5.0-current works with this laptop. sound plays
        perfectly and every time.


>How-To-Repeat:
	share interrupts with sound card.
        kldload t4dwave for an M5451 chip based sound card
        try to play some wav/mp3

>Fix:

	no fix known.	
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: greid 
State-Changed-When: Sat Sep 29 12:43:46 PDT 2001 
State-Changed-Why:  
Duplicate of 30808 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=30917 
>Unformatted:
