On Mon, 11 Nov 2002 11:27:46 -0500
[EMAIL PROTECTED] wrote:
> [I am resending this because I made a typo in my email address the
> first time I sent it, and it seems to have gotten lost in moderation
> land. My apologies if two copies end up making it out to the list. I
> should also mention that since I originally wrote this, I've noticed
> that the stuttering occasionally occurs with OSS apps as well as ALSA
> apps, though it is much less common.]
>
> I recently installed an ASUS A7V8X motherboard with onboard audio.
> This board has a Via KT400 northbridge and a Via VT8235 southbridge.
> The manual claims that the audio controller is an 8233, and the kernel
> reports it as such, but from what I've read, it could easly be an 8235
> and Linux wouldn't know the difference since they have the same PCI
> ID. I'm running a custom 2.4.19 kernel with the rc5 ALSA drivers and
> utilities on Debian (from the ALSA packages in Debian unstable/sid).
> I've also tried kernel 2.4.20-rc1 with no change.
>
> Everything is installed properly as far as I can tell, and I can use
> the OSS emulation of the ALSA drivers with no difficulty with most
> apps. Notably, xmms works using the OSS output plugin, and I can cat
> .au files to /dev/dsp. Both alsamixer and gmix work for changing
> mixer settings. However, esd will not work with either OSS or ALSA,
> nor will aplay. Both aplay and esd stutter, repeating the first half
> a second or so of the music dozens of times before moving on to the
> next half-second, which is then repeated dozens of times. I compiled
> the ALSA drivers with verbose debugging, and I get messages like these
> in dmesg when the stuttering occurs:
>
> ALSA ../alsa-kernel/core/pcm_native.c:1137: playback drain error (DMA
> or IRQ trouble?)
> ALSA ../alsa-kernel/core/pcm_lib.c:1916: playback write error (DMA or
> IRQ trouble?)
> ALSA ../alsa-kernel/core/pcm_lib.c:187: Unexpected hw_pointer value
> (stream = 0, delta: -1016, max jitter = 16384): wrong interrupt acknowledge?
>
> The last of those ("Unexpected hw_pointer value") is repeated many
> times. The messages don't always occur in that order. Of course, I
> checked for an IRQ conflict, but I can't see anything else in the
> system trying to use IRQ 6, which is what the sound card is on. Here
> is /proc/interrupts:
>
> CPU0
> 0: 1678858 XT-PIC timer
> 1: 14287 XT-PIC keyboard
> 2: 0 XT-PIC cascade
> 3: 0 XT-PIC ehci-hcd, usb-uhci
> 5: 349871 XT-PIC eth0
> 6: 3 XT-PIC VIA8233
> 8: 3 XT-PIC rtc
> 9: 0 XT-PIC usb-uhci, usb-uhci
> 10: 1 XT-PIC ohci1394
> 11: 1275620 XT-PIC aic7xxx, nvidia
> 12: 451359 XT-PIC PS/2 Mouse
> 14: 1225 XT-PIC ide0
> NMI: 0
> ERR: 1
>
> And this is /proc/asound/cards:
>
> 0 [card0 ]: VIA8233 - VIA 8233A/C
> VIA 8233A/C at 0xe000, irq 6
>
>
> The output of `lspci -vv` is attached separately do to its size. If
> there's any other diagnostic information I can obtain, please let me
> know.
>
> Has anybody else had similar problems with this chipset? Any
> suggestions? I'll be monitoring this list at least until I get this
> thing working, or you can respond to me directly.
>
> Thanks in advance for any help,
>
> Randall Nortman
This looks like this sound problem:
http://www.mail-archive.com/alsa-user@;lists.sourceforge.net/msg05183.html
And you both have:
Multimedia audio controller: VIA Technologies, Inc. VT8233 AC97 Audio
Controller (rev 50) (on different mainboards though).
HTH this helps to solve the problem :)
-Frans
-------------------------------------------------------
This sf.net email is sponsored by:
To learn the basics of securing your web site with SSL,
click here to get a FREE TRIAL of a Thawte Server Certificate:
http://www.gothawte.com/rd522.html
_______________________________________________
Alsa-user mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/alsa-user
