Date: Fri, 06 Oct 2000 09:51:21 -0500 From: Jeremy Vandenhouten <jeremy.vandenhouten@marquette.edu> To: K.J.Bosschaart@tue.nl Cc: freebsd-questions@FreeBSD.ORG Subject: Re: scratchy SB PCI 128 Message-ID: <2cdcd12cfe0e.2cfe0e2cdcd1@marquette.edu>
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I don't proclaim to be a genius about FreeBSD, as a matter of fact I just got into not that long ago, but anyways: I have a SB16 (Vibra16x) that used to have the same problem. This is when I was running it using the "controller snd0" option in the kernel along with the appropriate Voxware driver. I later moved this card to another machine and used the newer "device pcm" addition to the kernel along with the associated bridge line for my kernel. Check out the LINT (kernel) to see these options. This also allowed me to reserve the second DMA channel needed by the SB cards by using the flags 0x## option in the kernel. This seems to have fixed my problem. Hope that helps, J > On Thu, Oct 05, 2000 at 05:40:41PM +0000, Tom Kyle wrote: > > Whoops - should have checked this before posting, but I'm still > perplexed:> > > Apparently this happens when the load avg goes above 1.0. I > dropped out of X, > > killed most everything off (including SETI), and was able to > play some files > > just fine. After some checking, it seems to be dependent on the > load avg. Ie, > > when the average goes about 1.00, the audio becomes distorted. > Funky.> > > Still, what is causing this? I've never experienced this with > Linux or OpenBSD, > > but then again I'd previously stuck to SB64 and SB16PnP's. > > > It's pretty weird... I'm hearing the scratchy sound as well on a > PCI128(es1370). It has always been on that machine, starting from > 3.2 and it still > does in 4.1.1. In Windows, sound is perfect, so hardware should be > OK. On > other machines, I have another es1370 that has worked perfectly > since 3.1 > up to 4.1. > I noted that the scratching gets worse when there is a lot of disk > activity(that was in 3.2). Also, I changed irq for the card (by > reserving the irq > in the BIOS for ISA, so it's forced to use another one) and it has the > same scratch. > I don't really know where to search... :-(. The system having > trouble is > SCSI only, while the other systems have also IDE or are IDE only. > Don't > know if that could be a clue. > I think this 'scratch problem' has come up several times, but I > never saw > a solution. > > Karel. > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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