Re: [ALSA - driver 0000059]: On au8820 left and right channels are swapped

[Raymond <rayau@netvigator.com>]

bugtrack@alsa-project.org wrote:
> The following issue has been set as RELATED TO issue 0000949.
> ======================================================================
> <https://bugtrack.alsa-project.org/alsa-bug/view.php?id=59> 
> ======================================================================
> Reported By:                kernel_bug
> Assigned To:                mjander
> ======================================================================
> Project:                    ALSA - driver
> Issue ID:                   59
> Category:                   PCI - au88x0
> Reproducibility:            random
> Severity:                   major
> Priority:                   normal
> Status:                     feedback
> Distribution:               
> Kernel Version:             2.6.2
> ======================================================================
> Date Submitted:             02-13-2004 11:40 CET
> Last Modified:              03-10-2005 21:25 CET
> ======================================================================
> Summary:                    On au8820 left and right channels are swapped
> Description: 
> In most cases, left and right channels are swapped. But in approx. 5% cases
> all OK. Looks like the matter is somewhere in byte alignment...
> ======================================================================

> 
> ----------------------------------------------------------------------
>  kernel_bug - 03-10-05 21:25 
> ----------------------------------------------------------------------
> 
>>Did anyone still get this bug or may we close it ?
> 
> 
> Yes, I still get this bug. Channels are swapped just after the module is
> loaded. First attempt to play something causes output with swapped
> channels, all consequent attempts cause normal output.
> 
> "A long time ago" there was fixed another bug concerned with _random_
> channel swap at _any_ attempt of output. Now we _always_ have swapped
> channels, but only when you try to output something just after the module
> is loaded.
> 
> I use ALSA drivers from the Linux kernel 2.6.11.
> 


Would you add the routine vortex_dump_routes() and post the dump of the 
active routes & mixers at the end of vortex_pcm_hw_params() when 
channels are correct/swapped ?

http://article.gmane.org/gmane.linux.alsa.devel/20490

au88x0_pcm.c
	vortex_dump_routes(chip,"at end of vortex_pcm_close()");
	vortex_dump_routes(chip,"at end of vortex_pcm_hw_params()");
au88x0_core.c
         vortex_dump_routes(vortex,"at end of vortex_connect_deault()");


BTW, this bug seem not RELATED TO issue 0000949.






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