quake3 and alsa trouble: resampler probably doesn't work properly?

["Prakash K. Cheemplavam" <PrakashKC@gmx.de>]

Hi all,

I am using nforce2 with intel8x0 compiled into 2.6.1-rc1-mm1 based kernel.

if you just start quake3 then you will have no sound. If you apply the 
famous cat "bla direct" > /bla/pcm/bla (and the other disable for 
capture), then sound reappears. Ok. But as soon as I load a map (except 
the very first one) quake will "soft freeze" ie you will hear a portion 
of sound getting repeated and quake3 as such seems to be frozen. But you 
can simple kill it and the rest of the system is not affected. I then 
compiled debug into alsa and got this assert error in the "soft freeze":

ALSA sound/core/pcm_lib.c:61: BUG? (runtime->silence_filled <= 
runtime->buffer_size) (called from c030c7ad)

(I got this error with alsa0.9.8, which can be provoked if you set 
soundspeed to something high in the quake config, setting it to 0 quake 
works with alsa 0.9.8, but not with latest alsa)

I treid setting the other alsa-oss options (read in the alsa 
Documentation about alsa-oss) , as well, but didn't help. I noticed that 
the "whole-frag" option didn't appear, even if I cat it into the proc 
setting. might that be the problem? I looked into the source and this 
option isn't there, so docs are not up to date.



So, I have an idea, what is wrong with alsa1.x. When using alsa 0.9.8:

------- sound initialization -------
------------------------------------
----- Sound Info -----
sound system is muted
1 stereo
32768 samples
16 samplebits
1 submission_chunk
22050 speed
0x46a0c000 dma buffer
No background file.


and quake3 works. Whereas with alsa1.x speed is set to 48000, no matter 
what I set in the config file. Furthermore *if* I set sndspeed to 48000 
then quake3 hangs also with alsa 0.9.8.

So my conclusion: There is something wrong with alsa resampler. This 
also can be seen in other instances and reports users have filed in. I 
hope this gets fixed soon.

Thanx,

Prakash


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