[PD-dev] Re: 0.39-test6 ALSA audio broken?
Claude Heiland-Allen
claudiusmaximus at goto10.org
Mon Aug 29 02:12:27 CEST 2005
Hi Miller,
Miller Puckette wrote:
> Hi Claude,
>
> This is weird behavior indeed... what audio hardware are you using?
The onboard sound on my laptop:
# lsmod | grep snd
snd_virmidi 3200 0
snd_seq_virmidi 5952 1 snd_virmidi
snd_rawmidi 20640 1 snd_seq_virmidi
snd_seq_midi_event 5824 1 snd_seq_virmidi
snd_seq 50512 2 snd_seq_virmidi,snd_seq_midi_event
snd_seq_device 7244 2 snd_rawmidi,snd_seq
snd_pcm_oss 48032 1
snd_mixer_oss 17216 1 snd_pcm_oss
snd_rtctimer 2576 0
snd_intel8x0 29568 2
snd_ac97_codec 83004 1 snd_intel8x0
snd_pcm 82568 3 snd_pcm_oss,snd_intel8x0,snd_ac97_codec
snd_timer 21700 3 snd_seq,snd_rtctimer,snd_pcm
snd 49220 14
snd_virmidi,snd_seq_virmidi,snd_rawmidi,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_rtctimer,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
snd_page_alloc 7748 2 snd_intel8x0,snd_pcm
soundcore 7456 3 snd,usb_midi
rtc 10744 1 snd_rtctimer
# lspci -v
0000:00:1f.5 Multimedia audio controller: Intel Corporation
82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
Subsystem: ASUSTeK Computer Inc.: Unknown device 1893
Flags: bus master, medium devsel, latency 0, IRQ 7
I/O ports at ee00
I/O ports at e000 [size=64]
Memory at ffaff800 (32-bit, non-prefetchable) [size=512]
Memory at ffaff400 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
I noticed that the modem (which I don't use) and the Cardbus Bridge
(which I don't use either) also use IRQ 7, but I don't know what this means.
Claude
> I'm running nothing but ALSA these days and haven't had that kind of
> problem...
>
>
> On Fri, Aug 26, 2005 at 01:27:45AM +0100, Claude Heiland-Allen wrote:
>
>>Hi Miller, and others,
>>
>>With ALSA audio output I get:
>>
>>tried but couldn't sync A/D/A
>>^^^ repeated many times
>>
>>audio I/O error history:
>>seconds ago error type
>> 3.00 A/D/A sync
>> 3.00 DAC blocked
>> 3.00 A/D/A sync
>> 3.00 DAC blocked
>> 3.00 A/D/A sync
>> 3.00 DAC blocked
>> 3.00 A/D/A sync
>> 6.92 DAC blocked
>> 6.92 A/D/A sync
>> 6.92 DAC blocked
>> 6.92 A/D/A sync
>> 7.09 DAC blocked
>> 7.09 A/D/A sync
>> 7.09 DAC blocked
>> 7.09 A/D/A sync
>> 7.09 DAC blocked
>> 7.09 A/D/A sync
>> 7.09 DAC blocked
>> 7.09 A/D/A sync
>> 7.44 DAC blocked
>>
>>I set the buffer size to as high as 500ms and still got >100ms audio
>>dropouts every few seconds, which is obviously no good at all.
>>
>>PortAudio with /dev/dsp works fine with the same settings, no dropouts
>>at all, so I guess that's what I'll use for now. I have yet to try
>>JACK, and OSS didn't work at all (no devices to choose from, which is
>>strange because PortAudio works fine with /dev/dsp)
>>
>>
>>Claude
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