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

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

[Prakash K. Cheemplavam]

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

[Jaroslav Kysela]

On Sun, 4 Jan 2004, Prakash K. Cheemplavam wrote:

> 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":

Can you try the latest kernel patch?

ftp://ftp.alsa-project.org/pub/kernel-patches/alsa-bk-2003-12-30.patch.gz

						Jaroslav

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


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

[Prakash K. Cheemplavam]

Jaroslav Kysela wrote:
> On Sun, 4 Jan 2004, Prakash K. Cheemplavam wrote:
> 
> 
>>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":
> 
> 
> Can you try the latest kernel patch?
> 
> ftp://ftp.alsa-project.org/pub/kernel-patches/alsa-bk-2003-12-30.patch.gz

I already tried it AFAIK. alsa 1.0.1 IIRC. Same issue. I even tried cvs 
from 01.01.04. No go.

Prakash


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

[Prakash K. Cheemplavam]

I just tried alsa 1.0.1 release and it still has the same error.

Prakash

Prakash K. Cheemplavam wrote:
> Jaroslav Kysela wrote:
> 
>> On Sun, 4 Jan 2004, Prakash K. Cheemplavam wrote:
>>
>>
>>> 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":
>>
>>
>>
>> Can you try the latest kernel patch?
>>
>> ftp://ftp.alsa-project.org/pub/kernel-patches/alsa-bk-2003-12-30.patch.gz
> 
> 
> I already tried it AFAIK. alsa 1.0.1 IIRC. Same issue. I even tried cvs 
> from 01.01.04. No go.
> 
> Prakash
> 
> 
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> 



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

[Prakash K. Cheemplavam]

Perhaps this helps:

bash-2.05b# cat /proc/asound/card0/codec97#0/ac97#0-0
0-0/0: Realtek ALC650 rev 3

Capabilities     :
DAC resolution   : 20-bit
ADC resolution   : 18-bit
3D enhancement   : Realtek 3D Stereo Enhancement

Current setup
Mic gain         : +0dB [+0dB]
POP path         : pre 3D
Sim. stereo      : off
3D enhancement   : off
Loudness         : off
Mono output      : MIX
Mic select       : Mic1
ADC/DAC loopback : off
Extended ID      : codec=0 rev=1 LDAC SDAC CDAC DSA=0 SPDIF DRA VRA
Extended status  : SPCV LDAC SDAC CDAC SPDIF=3/4 VRA
PCM front DAC    : 48000Hz
PCM Surr DAC     : 48000Hz
PCM LFE DAC      : 48000Hz
PCM ADC          : 22050Hz
SPDIF Control    : Consumer PCM Category=0x2 Generation=1 Rate=48kHz
SPDIF In Status  : Not Locked

As I mailed, the error is still present in lastest alsa release
1.0.1. Any news? I got no response if this is taken as bug report or 
just being ignored.

bye,

Prakash

Prakash K. Cheemplavam wrote:
> 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.


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