Re: AW: [Alsa-user] (Still) Problems with VIA8233

Re: AW: [Alsa-user] (Still) Problems with VIA8233

[Takashi Iwai]

At 11 Mar 2003 11:40:56 -0600,
Edward Muller wrote:
> 
> I am currently running a cvs version of also from a week ago...Sometime
> after rc8 IIRC.
> 
> Here are my problems:
> 
> -OSS emulation is pretty much broken. This is my biggest problem since a
> lot of app (esound, the kde rpms I am using, realplayer, etc) use oss.
 
please elaborate (together with your system details) ?
"doesn't work" is not a magic word to explain everything.

ALSA native apps are working?  if yes, then it must be a different
reason from Pattrick's problem.

> -When cpu usage spikes any playback sometimes gets a little wierd
> (skipping, faltering, etc). This may be due to that fact that I am
> running a preempt enabled kernel. I will take the time to re-compile a
> non-preempt kernel (and rebuild alsa, win4lin, vmware, nvidia :-( )
> later this week.

this may have been improved in the latest version.


ciao,

Takashi


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Re: AW: (Still) Problems with VIA8233

[Edward Muller]

comments inline...

On Tue, 2003-03-11 at 11:55, Takashi Iwai wrote:
> At 11 Mar 2003 11:40:56 -0600,
> Edward Muller wrote:
> > 
> > I am currently running a cvs version of also from a week ago...Sometime
> > after rc8 IIRC.
> > 
> > Here are my problems:
> > 
> > -OSS emulation is pretty much broken. This is my biggest problem since a
> > lot of app (esound, the kde rpms I am using, realplayer, etc) use oss.
>  
> please elaborate (together with your system details) ?
> "doesn't work" is not a magic word to explain everything.

Very true. Currently any apps using an oss device loop continuously over
the first X seconds of the music. I really don't know how long X is,
probably the first 1 to 3 seconds. I usually end up having to kill the
software to get control back.

> 
> ALSA native apps are working?  if yes, then it must be a different
> reason from Pattrick's problem.

Lemme re-state that. I was under the impression that the only native
alsa application I had was XMMS w/xmms-alsa. I forgot about things like
aplay and the like. aplay also exhibits the same problems as the oss
apps above. But XMMS w/xmms-alsa work for the most part. See my previous
comments about skipping/faltering ... And I really need to test w/o
preempt.

> 
> > -When cpu usage spikes any playback sometimes gets a little wierd
> > (skipping, faltering, etc). This may be due to that fact that I am
> > running a preempt enabled kernel. I will take the time to re-compile a
> > non-preempt kernel (and rebuild alsa, win4lin, vmware, nvidia :-( )
> > later this week.
> 
> this may have been improved in the latest version.
> 
> 
> ciao,
> 
> Takashi
-- 
Edward Muller

Interlix - President

Web Hosting - PC Service & Support
Custom Programming - Network Service & Support

Phone: 417-862-0573
 Cell: 417-844-2435
  Fax: 417-862-0572

http://www.interlix.com



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Re: AW: [Alsa-user] (Still) Problems with VIA8233

[Takashi Iwai]

At 11 Mar 2003 12:47:59 -0600,
Edward Muller wrote:
> 
> comments inline...
> 
> On Tue, 2003-03-11 at 11:55, Takashi Iwai wrote:
> > At 11 Mar 2003 11:40:56 -0600,
> > Edward Muller wrote:
> > > 
> > > I am currently running a cvs version of also from a week ago...Sometime
> > > after rc8 IIRC.
> > > 
> > > Here are my problems:
> > > 
> > > -OSS emulation is pretty much broken. This is my biggest problem since a
> > > lot of app (esound, the kde rpms I am using, realplayer, etc) use oss.
> >  
> > please elaborate (together with your system details) ?
> > "doesn't work" is not a magic word to explain everything.
> 
> Very true. Currently any apps using an oss device loop continuously over
> the first X seconds of the music. I really don't know how long X is,
> probably the first 1 to 3 seconds. I usually end up having to kill the
> software to get control back.

hmm, can you check whether interrupts are generated during playback?
how about the hardware configuration?
on some mono, PnP OS must be disabled.

also, let me know the chip and the chip version.
even VIA8233 and VIA8233A are fairly different.


> 
> > 
> > ALSA native apps are working?  if yes, then it must be a different
> > reason from Pattrick's problem.
> 
> Lemme re-state that. I was under the impression that the only native
> alsa application I had was XMMS w/xmms-alsa. I forgot about things like
> aplay and the like. aplay also exhibits the same problems as the oss
> apps above. But XMMS w/xmms-alsa work for the most part. See my previous
> comments about skipping/faltering ... And I really need to test w/o
> preempt.

i'm wondering why xmms-alsa works at all even though aplay doesn't
work.
please check the files under /proc/asound/card0/pcm0p/sub0 in both
cases.

anyway, update to version 0.9.1 at first, to keep things in sync.


ciao,

Takashi


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Re: AW: (Still) Problems with VIA8233

[Edward Muller]

-How do I check to see if interrupts are generated during playback?
-What about the hardware configuration do you want to know?
-PnP OS is enabled at the moment, since well linux 2.4 is supposed to be
a pnp os ... no?

Output from /proc/pci

Multimedia audio controller: VIA Technologies, Inc. VT8233 AC97 Audio
Controller (rev 80).
IRQ 6.
I/O at 0xe000 [0xe0ff].

My MoBo is an Asus Via KT400

I am using the following kernel args:
root=LABEL=/ hdc=ide-scsi pci=biosirq

I am using the following in my modules.conf:
options snd-via82xx index=0 id="VIA"

What should I check for in /proc/asound/card0/pcm0p/sub0?

I've updated to the current cvs as of this morning.

There is the way things work now. :-) 

xmms w/xmms-alsa: Works fine, no noticeable problems currently, although
I really didn't listen to much music today.

xmms w/oss support: plays a track fine, but when the track ends there is
a problem with the track either sputtering or repeating the last X
seconds (X = 1 or 2 seconds) over and over again for about 30 seconds.

aplay: same repeat problem describer earlier.

realplayer (uses OSS IIRC): Skipping and repeating either during a
track, at the end or in the beginning.

On Wed, 2003-03-12 at 04:58, Takashi Iwai wrote:
> At 11 Mar 2003 12:47:59 -0600,
> Edward Muller wrote:
> > 
> > comments inline...
> > 
> > On Tue, 2003-03-11 at 11:55, Takashi Iwai wrote:
> > > At 11 Mar 2003 11:40:56 -0600,
> > > Edward Muller wrote:
> > > > 
> > > > I am currently running a cvs version of also from a week ago...Sometime
> > > > after rc8 IIRC.
> > > > 
> > > > Here are my problems:
> > > > 
> > > > -OSS emulation is pretty much broken. This is my biggest problem since a
> > > > lot of app (esound, the kde rpms I am using, realplayer, etc) use oss.
> > >  
> > > please elaborate (together with your system details) ?
> > > "doesn't work" is not a magic word to explain everything.
> > 
> > Very true. Currently any apps using an oss device loop continuously over
> > the first X seconds of the music. I really don't know how long X is,
> > probably the first 1 to 3 seconds. I usually end up having to kill the
> > software to get control back.
> 
> hmm, can you check whether interrupts are generated during playback?
> how about the hardware configuration?
> on some mono, PnP OS must be disabled.
> 
> also, let me know the chip and the chip version.
> even VIA8233 and VIA8233A are fairly different.
> 
> 
> > 
> > > 
> > > ALSA native apps are working?  if yes, then it must be a different
> > > reason from Pattrick's problem.
> > 
> > Lemme re-state that. I was under the impression that the only native
> > alsa application I had was XMMS w/xmms-alsa. I forgot about things like
> > aplay and the like. aplay also exhibits the same problems as the oss
> > apps above. But XMMS w/xmms-alsa work for the most part. See my previous
> > comments about skipping/faltering ... And I really need to test w/o
> > preempt.
> 
> i'm wondering why xmms-alsa works at all even though aplay doesn't
> work.
> please check the files under /proc/asound/card0/pcm0p/sub0 in both
> cases.
> 
> anyway, update to version 0.9.1 at first, to keep things in sync.
> 
> 
> ciao,
> 
> Takashi
-- 
Edward Muller

Interlix - President

Web Hosting - PC Service & Support
Custom Programming - Network Service & Support

Phone: 417-862-0573
 Cell: 417-844-2435
  Fax: 417-862-0572

http://www.interlix.com



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