[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> 
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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:              08-03-2005 15:17 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 - 08-03-05 13:42 
----------------------------------------------------------------------
perex:

I copied the attached alsaconf script over my old one and ran it. The
first time, without rebooting, it said it found a OPL3SA2 and would write
the configuration to /etc/modprobe.conf, but either it didn't or it
detected things incorrectly.

After rebooting, it won't even detect the OPL3SA2. "No legacy cards
found."

What version of ALSA and the kernel are you running? If we can try to get
at least similar software, it might be easier to debug these issues. Also,
what kind of OPL3SA2 are you using? I have one in my Gateway Solo 2500 and
I have PNP turned off in the BIOS.

Thanks!

----------------------------------------------------------------------
 ahaning - 08-03-05 15:17 
----------------------------------------------------------------------
After applying that patch to alsa-utils-1.0.9 and reinstalling
alsa-driver-1.0.9b, alsaconf appears to be consistently detecting my card.
I don't think the IRQ setting is quite correct and I'm currently only able
to access the machine over SSH, so I can't tell whether or not it's
working. Here's the modprobe.conf that is generated:

# --- BEGIN: Generated by ALSACONF, do not edit. ---
# --- ALSACONF version 1.0.9 ---
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=1 dma2=0 irq=5
# --- END: Generated by ALSACONF, do not edit. ---


I don't think it's set to IRQ 5 and dma1 is usally set to 0 and dma2 to 1,
but the IO ports look correct. I can load alsamixer and fiddle with the
options. mplayer doesn't seem to be able to play (from what I can tell
from an SSH window).

At least it's a small step.

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                          
07-09-05 11:14 jdthood        Note Added: 0005440                          
07-28-05 05:17 ahaning        Note Added: 0005577                          
08-02-05 00:02 iive           Note Added: 0005599                          
08-02-05 03:00 ahaning        Note Added: 0005600                          
08-02-05 03:05 ahaning        Note Added: 0005601                          
08-02-05 03:05 ahaning        Note Deleted: 0005600                        
08-02-05 22:08 perex          File Added: alsaconf-isapnp-2.6.patch             
      
08-02-05 22:14 perex          Note Added: 0005607                          
08-02-05 22:16 perex          Note Added: 0005608                          
08-03-05 02:46 ahaning        Note Added: 0005610                          
08-03-05 11:42 perex          File Added: alsaconf                         
08-03-05 11:42 perex          Note Added: 0005615                          
08-03-05 13:42 ahaning        Note Added: 0005625                          
08-03-05 15:17 ahaning        Note Added: 0005631                          
======================================================================




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