Date: Wed, 29 Jan 1997 20:02:53 -0800 (PST) From: Doug White <dwhite@gdi.uoregon.edu> To: Mark Taylor <mtaylor@cybernet.com> Cc: multimedia@freebsd.org Subject: Re: SoundBlaster Pro 2 card stops for video output Message-ID: <Pine.BSI.3.94.970129200136.25390a-100000@localhost> In-Reply-To: <XFMail.970129144053.mtaylor@cybernet.com>
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On Wed, 29 Jan 1997, Mark Taylor wrote: > >> The sound is fine unless I have another window scrolling text (as in > >> "while [ 1 ]; do ps -ax; done"). At that time, the sound seems to > >> stop playing (the sound process starves?). > > > >I can't reproduce this on my P100, GUS PnP, and ATI Mach64 video using > >your command (under X -- the ps -ax is barely doing anything!) > > > >What's your video card? > > A Diamond Stealth 64 w/ 2 Mb DRAM, running Accelerated-X 2.1. Well, I'm on XFree86, so it may be accelX related... > >DMA 1 may be used by something else; also, the shared DMA may be confusing > >it. (Wait -- a Pro isn't a 16 bit device, it only has one DMA channel!) > > That's right- it's supposed to be an 8 bit card, but it has a the > extension for the 16 bit ISA bus. Hmmm... > > > > >> I have DMA channel 1 and IRQ channels 5 and 7 set for "Legacy ISA" in the BIOS > >> config (yes, there are four PCI devices in there: de0, video, PCI IDE, > >> and USB port), so nothing should be stealing the IRQ or DMA channel. > > > >How about other ISA devices? > > There are no other ISA cards in the machine! Everything else checks out, or so it appears. The only thing I can think of is that accelX is stickier about video output that XFree is. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major
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