Re: patch, and other via82xx (VT8235) capture problems

[Takashi Iwai <tiwai@suse.de>]

At Sat, 25 Oct 2003 09:31:59 -0500,
Zinx Verituse wrote:
> 
> On Fri, Oct 24, 2003 at 03:59:18PM -0500, Zinx Verituse wrote:
> > On Fri, Oct 24, 2003 at 03:14:44PM +0200, Takashi Iwai wrote:
> > > At Thu, 23 Oct 2003 20:05:02 -0500,
> > > Zinx Verituse wrote:
> > > > 
> > > > Any ideas on the problem with me not being able to record
> > > > if the Input Source is set to Mic?
> > > > 
> > > > arecord records when it's set to Line (as it was forced, before),
> > > > and does playback as well..
> > > > 
> > > > When it's set to Mic, I get no playback from a Mic (and I'm not
> > > > wanting to hook up powered output in to the jack when it's set
> > > > to Mic), but I suspect it's still Line-in, and the register
> > > > being twiddled isn't right, or needs some more setup.
> > > > 
> > > > arecord waits a bit, then gives the error I mentioned:
> > > > arecord: pcm_read:1110: read error: Input/output error
> > > > 
> > > > dmesg says nothing :/
> > > > 
> > > > If nothing else, the settings do have to do with the actual
> > > > capture sources (idx 0 vs. idx 1), because when I set idx 0
> > > > to mic, it can't record, but idx 1 can, and when I set idx 1
> > > > to mic, it can't record, but idx 0 can.  When both are set
> > > > to mic, neither can record.
> > > 
> > > sorry, could you elaborate this?  i'm confused.
> > > did you try hw:0,0 and hw:0,1, right?
> > > 
> > 
> > Yeah, hw:0,0 fails when Input Source idx 0 is set to Mic,
> > and hw:0,1 fails when Input Source idx 1 is set to Mic.
> > 
> > > 
> > > Takashi
> > > 
> > 
> 
> I have more to report on this issue:
> When I was recording with 'Line' selected as the 'Input Source',
> 'Mic' was the selected recording device, and 'Line' was completely
> silent.  Also, I have noticed that if I'm playing something on
> hw:0,0, then hw:0,1 fails like recording does.  However, if I try
> to play two things to hw:0,0, it works.  And if I try to play
> something to hw:0,1 while hw:0,0 is closed, it also works.

well, playing hw:0,0 and hw:0,1 is different from capture.
hw:0,0 is the multi-play device (DXS channels) while hw:0,1 is the
multi-channel play device for 5.1 outputs.  and you cannot access to
both devices at the same time, anyway.


Takashi


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