[ALSA - driver 0001869]: Playing surround sound produces 100% CPU load

[bugtrack@alsa-project.org]

A NOTE has been added to this issue.
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<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1869> 
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Reported By:                bitmage2
Assigned To:                
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Project:                    ALSA - driver
Issue ID:                   1869
Category:                   CORE - pcm
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Distribution:               SuSE Linux 10.0
Kernel Version:             Linux 2.6.13-15.8-default #1 Tue Feb 7 11:07:24 UTC
2006 i686 athlon i386 GNU/Linux
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Date Submitted:             02-23-2006 00:48 CET
Last Modified:              02-23-2006 00:54 CET
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Summary:                    Playing surround sound produces 100% CPU load
Description: 
I am using the CS46xx with a Hercules Gametheater XP 5.1 . It plays back
stereo without problems.
I wanted to use the rest of my 5.1 speaker set, so for a test I ran the
speaker-test program. Running it without parameters or with 2 or 4.0
channels works also fine. So far so good.

But when I run it with 5.0 channels or 5.1 channels the CPU load of
speaker-test goes to 100%. I'll show the output of top along with the
command lines below (for the 2.0 and 5.1 case) in the "Additional
Information" box.



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----------------------------------------------------------------------
 bitmage2 - 02-23-06 00:54 
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A similar behaviour is reported here (I also get this behaviour):
http://www.mail-archive.com/alsa-user%40lists.sourceforge.net/msg14867.html

Issue History
Date Modified  Username       Field                    Change              
======================================================================
02-23-06 00:48 bitmage2       New Issue                                    
02-23-06 00:48 bitmage2       Distribution              => SuSE Linux 10.0 
02-23-06 00:48 bitmage2       Kernel Version            => Linux
2.6.13-15.8-default #1 Tue Feb 7 11:07:24 UTC 2006 i686 athlon i386 GNU/Linux
02-23-06 00:54 bitmage2       Note Added: 0008164                          
======================================================================




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