still audio hiccups

Martin Dieringer martin.dieringer at
Tue May 8 16:21:42 UTC 2007

On Thu, 3 May 2007, Ariff Abdullah wrote:

> On Wed, 2 May 2007 03:40:08 +0200 (CEST)
> Martin Dieringer <martin.dieringer at> wrote:
>> I thought it was over when I killed powerd. But now it suddenly
>> makes "hiccup" every few seconds again.
>> This appears on the internal sound card (intel ich4) as well as the
>> USB (m-audio transit)
>> With mpd, xmms, waveplay...
>> No load, processor or disk stress.
>> - Thinkpad T42p
>> - FreeBSD 6.2-STABLE #5: Thu Mar 29 16:23:53 CEST 2007
> Please show the output of pciconf -lv | grep ^pcm

pcm0 at pci0:31:5: class=0x040100 card=0x05371014 chip=0x24c58086 rev=0x01 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = '82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller'
     class      = multimedia
     subclass   = audio

# cat /dev/sndstat 
FreeBSD Audio Driver (newpcm)
Installed devices:
pcm0: <Intel ICH4 (82801DB)> at io 0xc0000c00, 0xc0000800 irq 11
bufsz 16384 kld snd_ich (1p/1r/0v channels duplex default)
pcm1: <USB Audio> at ? kld snd_uaudio (1p/1r/0v channels duplex)
         mode 1:(output) 2ch, 24/24bit, pcm, 48001-96000Hz
         mode 3:(output) 2ch, 16/16bit, pcm, 8000-48000Hz
         mode 1:(input) 2ch, 24/24bit, pcm, 48001-96000Hz
         mode 2:(input) 2ch, 24/24bit, pcm, 8000-48000Hz
         mode 3:(input) 2ch, 16/16bit, pcm, 8000-48000Hz


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