Re: 1.0.0pre2 - ymfpci

Re: 1.0.0pre2 - ymfpci

[tom burkart]

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Quoting Takashi Iwai <tiwai@suse.de>:


> i thought you got the silent output, but now you get a scraching
> output?
Ok, I must have just woken up...  The scratchiness of the sound are the louder
parts of the music (so it appears anyway).  So I am postulating that for some
reason the lower 8 bits do not make it to the chip/output.  This is a guess, but
who knows, maybe there is some truth in it...

> anyway, please show again the register dump via proc file, and
> hw_params in /proc/asound/card0/pcm0p/sub0.  both files should be
> checked during playback.
Attached.

tom.




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switch to new PCM API for 1.0 release

[Jaroslav Kysela]

Hi all,

	I decided to switch to new PCM API (values are returned using an
indirect pointer rather as return value, so error codes are not mixed with
values). The binary compatibility is kept. So, you can use old
applications with new libraries and you can even use applications compiled
against 1.0 alsa-lib with 0.9 library binaries.
	The only change for developers or package maintainers are two
defines for old (not updated) applications:

#define ALSA_PCM_OLD_HW_PARAMS_API
#define ALSA_PCM_OLD_SW_PARAMS_API
#include <alsa/asoundlib.h>

	Also note that these defines might be removed for updated
applications (altough the code will not compile with 0.9 libraries):

#define ALSA_PCM_NEW_HW_PARAMS_API
#define ALSA_PCM_NEW_SW_PARAMS_API

						Jaroslav

-----
Jaroslav Kysela <perex@suse.cz>
Linux Kernel Sound Maintainer
ALSA Project, SuSE Labs


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1.0.0pre2 - ymfpci

[tom burkart]

The problem I reported several times is still present.

Problem:

Toshiba Tecra Notebook (Yamaha YMF-744B) still has scratchy,
unintelligible sound output.
kernel 2.4.22, alsa-driver 1.0.0pre2

Yet, the ymfpci kernel module (OSS) works fine.

Please advise on how I can help to debug this.

tom.


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Re: 1.0.0pre2 - ymfpci

[Takashi Iwai]

At Mon, 24 Nov 2003 15:19:42 +1100 (EST),
tom burkart wrote:
> 
> The problem I reported several times is still present.
> 
> Problem:
> 
> Toshiba Tecra Notebook (Yamaha YMF-744B) still has scratchy,
> unintelligible sound output.
> kernel 2.4.22, alsa-driver 1.0.0pre2
> 
> Yet, the ymfpci kernel module (OSS) works fine.
> 
> Please advise on how I can help to debug this.

hmm, that one is a long standing bug.
i thought you got the silent output, but now you get a scraching
output?
anyway, please show again the register dump via proc file, and
hw_params in /proc/asound/card0/pcm0p/sub0.  both files should be
checked during playback.


Takashi


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