Re: [Openvortex-dev] Stereo swapping.

[Taisto Kuikka]

On Sun, 29 Jun 2003, Ryan Underwood wrote:

>
> I just noticed my syslog is getting spamed with the following:
>
> ALSA ../alsa-kernel/core/pcm_lib.c:156: Unexpected hw_pointer value
> (stream = 0, delta: -75, max jitter = 8192): wrong interrupt
> acknowledge?
> vortex: stop 1
> ALSA ../alsa-kernel/core/pcm_lib.c:156: Unexpected hw_pointer value
> (stream = 0, delta: -475, max jitter = 2048): wrong interrupt
> acknowledge?
> vortex: de alloc 1
> ALSA ../alsa-kernel/core/pcm_lib.c:215: Unexpected hw_pointer value
> (stream = 0, delta: -502, max jitter = 2048): wrong interrupt
> acknowledge?
> ALSA ../alsa-kernel/core/pcm_lib.c:215: Unexpected hw_pointer value
> (stream = 0, delta: -499, max jitter = 2048): wrong interrupt
> acknowledge?
> ALSA ../alsa-kernel/core/pcm_lib.c:215: Unexpected hw_pointer value
> (stream = 0, delta: -496, max jitter = 2048): wrong interrupt
> acknowledge?
> ALSA ../alsa-kernel/core/pcm_lib.c:215: Unexpected hw_pointer value
> (stream = 0, delta: -495, max jitter = 2048): wrong interrupt
> acknowledge?
>
> what about the others with swapping?
>

In my log there's not those. But I had interesting experience. I was
going to test different applications to test stereo swapping. But
when I start playing Ogg Vorbis and mp3's with xmms there wasn't
stereo swapping nor clicking. But after 10 minutes music suddenly
stopped but xmms didn't crash. And I found this in my .xsession-errors:

ALSA lib pcm_hw.c:524:(snd_pcm_hw_drain) SNDRV_PCM_IOCTL_DRAIN failed:
Input/output error
alsa-uninit: pcm drain error: Input/output error

and in syslog:

Vortex: vortex_fifo_setadbctrl fail

After that i had to reload driver to get it work again but then I had
stereo swapping/clicks again :(

-- 
Taisto Kuikka

Registered Linux User # 244216
--