[ALSA - driver 0000622]: snd-ens1371 hisses and garbled sound

* [ALSA - driver 0000622]: snd-ens1371 hisses and garbled sound
@ 2004-11-09 17:54 bugtrack
  0 siblings, 0 replies; 9+ messages in thread
From: bugtrack @ 2004-11-09 17:54 UTC (permalink / raw)
  To: alsa-devel

A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=622> 
======================================================================
Reported By:                jdthood
Assigned To:                
======================================================================
Project:                    ALSA - driver
Issue ID:                   622
Category:                   PCI - ens1371
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Distribution:               
Kernel Version:             
======================================================================
Date Submitted:             11-01-2004 11:29 CET
Last Modified:              11-09-2004 18:54 CET
======================================================================
Summary:                    snd-ens1371 hisses and garbled sound
Description: 
Please see Debian bug
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=239575:

    http://bugs.debian.org/239575

The submitter writes in part:

------------------------------------------------------
Before installing [Debian] sarge I happily used the ALSA sound system on a
2.4.20 [kernel] with my SB PCI 128 soundcard. With the 2.4.24 kernel [...]
the following problems occur:
After initilization of the snd-ens1371 module a loud hiss comes out of the
speakers. The artsd fails and displays a message that it will use the null
output device. All ALSA or arts enabled apps either crash, remain in a
infinite loop  initializing or start with sound disabled.
------------------------------------------------------

Another person adds:

------------------------------------------------------
Sound system is working rather properly but I get continual hisses out of
my soundcard, some sound is coming out as well but is completely garbled.
------------------------------------------------------

Any idea what might be wrong?
======================================================================

----------------------------------------------------------------------
 jdthood - 11-02-04 21:27 
----------------------------------------------------------------------
One of the submitters added the following information.
------------------------------------------------------
[Using alsa-lib 1.0.6]

Actually, I found a workaround to my problem under:
http://www.mail-archive.com/gentoo-user@gentoo.org/msg39015.html

It reads:
> I upgraded to KDE 3.2 (also had an upgrade to alsa-driver .9.8) and
afterward 
> had bad sound.  (I have a Creative PCI 128 card, or something like that,
that 
> linux identifies as an Ensoniq 5880, for which alsa uses the ens1371
card 
> drivers, whatever)
> 
> If I turned up the volume (on the speaker) I got  a lot of hiss and
static on 
> the left channel.  Even when I turned the volume in kmix all the way
down       
> (should be just silence) I would get hiss, static and whatever was
playing 
> (like a song on xmms) 
> 
> After trying a lot of complex things, the solution was pretty simple,
click 
> the little Advanced box in kmix, and uncheck the button for IEC958.
> 

That's what I did and it solved also my problem, though I would be 
pretty happy to have some explanations on the why. I tried also with 
alsamixer and (M)ute on IEC958 works as well, and the setup did survive 
an "alsactl store/restore" cycle. So it looks good for me.

So, for me, the severity can be reduced. I do still think that the 
problem needs to be fixed (for new users), or at least documented.

Cheers, Eric

----------------------------------------------------------------------
 tiwai - 11-09-04 18:54 
----------------------------------------------------------------------
This might be a KDE problem, which automatically turned on
this volume switch, although the driver default is OFF...

Maybe it's better to remove this one to avoid these reports.

Issue History
Date Modified  Username       Field                    Change              
======================================================================
11-01-04 11:29 jdthood        New Issue                                    
11-02-04 21:27 jdthood        Note Added: 0002299                          
11-09-04 18:54 tiwai          Note Added: 0002335                          
======================================================================

-------------------------------------------------------
This SF.Net email is sponsored by:
Sybase ASE Linux Express Edition - download now for FREE
LinuxWorld Reader's Choice Award Winner for best database on Linux.
http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click

^ permalink raw reply	[flat|nested] 9+ messages in thread