Re: [Alsa-user] Re: ALSA 1.0.0pre3 release

[Takashi Iwai <tiwai@suse.de>]

At Wed, 26 Nov 2003 15:10:06 +0100,
Ronny V. Vindenes wrote:
> 
> On Wed, 2003-11-26 at 13:32, Takashi Iwai wrote:
> > At Wed, 26 Nov 2003 13:10:11 +0100,
> > Ronny V. Vindenes wrote:
> > > 
> > > On Wed, 2003-11-26 at 11:44, Takashi Iwai wrote: 
> > > > At Wed, 26 Nov 2003 01:11:07 +0100,
> > > > Ronny V. Vindenes wrote:
> > > > > 
> > > > > On Tue, 2003-11-25 at 20:04, Takashi Iwai wrote:
> > > > > > Hi,
> > > > > > 
> > > > > > right now the ALSA 1.0.0pre3 packages are released.
> > > > > > 
> > > > > > In this version, alsa-tools package was divided to two several ones,
> > > > > > alsa-tools and alsa-firmware.  The latter contains only the firmware
> > > > > > binary files required by loader programs in alsa-tools package.
> > > > > > Please test them if you have a board requiring the loader (hdsp,
> > > > > > mixart, vx, usx2y).
> > > > > > 
> > > > > > Especially, HDSP users, please test and report whether it works, since
> > > > > > the hdsploader was modified to load the files dynamically.
> > > > > > 
> > > > > > 
> > > > > 
> > > > > mmap'ed sound with the cs46xx driver seems to be broken, every other
> > > > > half second the sound is muted. Non-mmap'ed sound plays normally. This
> > > > > is under 2.6.0-test9-mm5. The version included in test9-mm5 works as
> > > > > expected (there was some patches in mm5 against ALSA, but applying those
> > > > > to 1.0.0pre3 made no difference for this particular problem).
> > > > 
> > > > there is no big change in cs46xx driver itself, so the change is
> > > > either in kernel core or in the config.
> > > > do you use CONFIG_SND_CS46XX_NEW_DSP ?
> > > 
> > > Yes.
> > > 
> > > I've tested it with 2.6.0-test10 too now, and I've narrowed it down a
> > > bit: native alsa mmap'ed or not works, but oss emulation only works
> > > correctly when not using mmap.
> > > 
> > > Things like wine, quake3, Enemy Territory all sound awful. Plain
> > > 2.6.0-test10 works fine in all cases.
> > 
> > to be sure, try to set direct mode for oss-emulation via writing to
> > the proc file.  see alsa-kernel/Documentation/OSS-Emulation.txt.
> 
> Setting direct mode made no difference.
> 
> > 
> > also, please check /proc/asound/card0/pcm0p/sub0/* files in both
> > cases.
> 
> I've attached cat /proc/asound/card0/pcm0p/sub0/* for both cases

sorry, i meant the ALSA 1.0.0pre3 and the 2.6.0-test10 (oss-emu with
mmap).  it's known that the mmap support of this chip is not perfect.
but i still suspect that the base oss-emu code change affected this.


Takashi


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