[ALSA - driver 0000879]: (snd_)opl3sa2 (isa) doesn't work (fails on playback) on 2.6.x kernels

[bugtrack@alsa-project.org]

A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=879> 
======================================================================
Reported By:                iive
Assigned To:                
======================================================================
Project:                    ALSA - driver
Issue ID:                   879
Category:                   ISA - opl3sa2
Reproducibility:            always
Severity:                   block
Priority:                   normal
Status:                     new
Distribution:               Slackware 10
Kernel Version:             all 2.6.x kernel version (current 2.6.10)
======================================================================
Date Submitted:             02-03-2005 03:42 CET
Last Modified:              07-09-2005 11:13 CEST
======================================================================
Summary:                    (snd_)opl3sa2 (isa) doesn't work (fails on playback)
on 2.6.x kernels
Description: 
It doesn't work on all 2.6.x kernel I have tried (current 2.6.10)
alsaconf doesn't detect the card as PnP, and fails to find it with
bruteforce.

When module is loaded by hand it shows no error, but on `aplay samle.wav`
I got
"ALSA /work/install/alsa-driver-1.0.5a/alsa-kernel/core/pcm_lib.c:2172:
playback
write error (DMA or IRQ trouble?"

on boot with 2.4.x kernel, everything magically works (alsaconf, aplay
etc..)

the bug is reported 4 months ago on
http://bugzilla.kernel.org/show_bug.cgi?id=3117
that's why some versions are old (but I had tried alsa-1.0.8 before
reposting this bug here)

======================================================================

----------------------------------------------------------------------
 ahaning - 07-09-05 06:38 
----------------------------------------------------------------------
I was able to get alsa to brute-force detect my opl3sa2 card in linux 2.4
and then copy the modules.conf to modprobe.conf and then (after installing
the drivers compiled for the currently-installed kernel) I can do
'alsasound start' and I get audio just fine in kernel 2.6(.12.2).

HTH.

FWIW, here is the modprobe.conf that was generated under kernel 2.6:

# --- BEGIN: Generated by ALSACONF, do not edit. ---
# --- ALSACONF version 1.0.9rc3 ---
alias snd-card-0 snd-opl3sa2
alias sound-slot-0 snd-opl3sa2
options snd-opl3sa2 fm_port=-1 midi_port=-1 port=0x370 wss_port=0x530
dma1=3 dma2=1 irq=9
# --- END: Generated by ALSACONF, do not edit. ---


and here is the configuration generated under 2.4 (that works in 2.6,
too):

# --- BEGIN: Generated by ALSACONF, do not edit. ---
# --- ALSACONF version 1.0.9 ---
alias char-major-116 snd
alias char-major-14 soundcore
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
alias snd-card-0 snd-opl3sa2
alias sound-slot-0 snd-opl3sa2
options snd-opl3sa2 fm_port=-1 midi_port=-1 port=0x370 wss_port=0x530
dma1=0 dma2=1 irq=11 isapnp=0
# --- END: Generated by ALSACONF, do not edit. ---


HTH.

-Andy

(If you need any other information, I'm probably better reached via email:
ahaning@gmail.com)



----------------------------------------------------------------------
 jdthood - 07-09-05 11:13 
----------------------------------------------------------------------
> btw have you took a look of the attached file?

I just looked at it now.  I see that it contains a lot of information.

jdthood@turmeric:/tmp/isa_opl3sa2$ ls
fullog  isapnp_after  isapnp_before  kernel/  lsmod  proc/  sys/

Issue History
Date Modified  Username       Field                    Change              
======================================================================
02-03-05 03:42 iive           New Issue                                    
02-03-05 03:42 iive           File Added: isa_opl3sa2.tgz                    
02-03-05 03:42 iive           Distribution              => Slackware 10    
02-03-05 03:42 iive           Kernel Version            => all 2.6.x kernel
version (current 2.6.10)
04-13-05 21:59 jdthood        Note Added: 0004478                          
04-14-05 00:02 iive           Note Added: 0004485                          
07-09-05 06:26 ahaning        Note Added: 0005438                          
07-09-05 06:38 ahaning        Note Edited: 0005438                         
07-09-05 11:13 jdthood        Note Added: 0005439                          
======================================================================




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