Date: Sun, 13 May 2007 14:28:25 +0200 (CEST) From: Martin Dieringer <martin.dieringer@gmx.de> To: Ariff Abdullah <ariff@FreeBSD.org> Cc: freebsd-multimedia@freebsd.org Subject: Re: still audio hiccups Message-ID: <20070513141949.E700@thinkpad.dieringer.dyndns.org> In-Reply-To: <20070511234912.4df9c1c7.ariff@FreeBSD.org> References: <20070502032244.R860@thinkpad.dieringer.dyndns.org> <20070503221048.1061f296.ariff@FreeBSD.org> <20070508182001.U839@thinkpad.dieringer.dyndns.org> <20070509033542.D700@thinkpad.dieringer.dyndns.org> <20070511234912.4df9c1c7.ariff@FreeBSD.org>
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On Fri, 11 May 2007, Ariff Abdullah wrote: > On Wed, 9 May 2007 03:40:35 +0200 (CEST) > Martin Dieringer <martin.dieringer@gmx.de> wrote: >> On Tue, 8 May 2007, Martin Dieringer wrote: >> >>> On Thu, 3 May 2007, Ariff Abdullah wrote: >>> >>>> On Wed, 2 May 2007 03:40:08 +0200 (CEST) >>>> Martin Dieringer <martin.dieringer@gmx.de> 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@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 >> >> I switched to ACPI now (instead of APM), but the hiccups remained. >> >> They start after either the system is running for a while (now 6 >> hours) or music playback of some time (now about 2 hours altogether) >> and get worse. >> >> Shortly after a reboot everything seems ok. >> >> When I run "vmstat -w 1" they get worse, but I cannot relate them >> to any events.. >> > > pcm0 or pcm1, or both? Try enabling vchans, or grab binary modules > from http://people.freebsd.org/~ariff/BINARY_MODULES/ . Your clock > issues could be the prime suspect here. setting vchans=1 does resampling of 44.1 to 48kHz, which is unacceptable. I use a hacked snd_uaudio driver for the m-audio transit, so I suspect I cannot use your BINARY_MODULES... I have no more clock issues since I moved to ACPI btw. m.
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