Date: Thu, 31 May 2001 22:58:15 -0700 (PDT) From: Chuck Rouillard <chuckr@opus.sandiegoca.ncr.com> To: "David L. Hays, Jr." <elfkinz@elfland.net> Cc: <freebsd-questions@FreeBSD.ORG> Subject: Re: Problem with sound card and lpt port on non-standard IRQs Message-ID: <Pine.BSF.4.31.0105312131300.43938-100000@opus.sandiegoca.ncr.com> In-Reply-To: <Pine.BSF.4.21.0105312044070.14754-100000@shell2.ba.best.com>
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On Thu, 31 May 2001, David L. Hays, Jr. wrote: > My SoundBlaster 16 (CT2230) is set to use IRQ7 (not the default). The IRQ > is not set by a jumper on the hardware, so I have no idea how to change > it back to th e default. I have had no problems with the sound card until > recently when I dec ided to hook a printer up the the machine. Try the DOS-based configuration/diagnostic tools on Creative's web site. They're located a few links off from here: http://www.creative.com/support/, then look under "Download Files". > The LPT port has been disabled in BIOS until now. In the BIOS I set the > printer up on IRQ5 so it wouldn't be in conflict with the sound card. I also > made the appropriate adjustments in the kernel config file (see below). > I thought that t his was all I would need to do, but after rebuilding the > kernel with the parelle l port enabled I have no sound (dmesg output is > below). > > I would like to get both the printer and soundcard working by either a) > finding what else needs to be adjusted with the kernel config file (or if > there are any other files that need to be edited), or b) get the soundcard > reset to it's defau lt IRQ (5 I think). I would choose option b) first. Mitigate your changes where possible. > I have searched through Creative Lab's web page for any utilities for > changing t he IRQ of the sound card, but have not found anything, so I > think that option "a" might be the easier of the two. > > ----- > Kernel Config file: > # Parallel port > device ppc0 at isa? port? irq 5 drq 3 > device ppbus # Parallel port bus (required) > device lpt # Printer Why do you have a DMA request value for a parallel port device? > # SoundBlaster > device pcm > device sbc0 at isa? port 0x220 irq 7 drq 1 flags 0x15 > > ----- > dmesg with Parallel port disabled in BIOS and commented out of the > kernel config: > sbc0: <SoundBlaster 16> at port 0x220-0x22f irq 7 drq 1 flags 0x15 on isa0 > pcm0: <SB16 DSP 4.11> on sbc0 > > cat /dev/sndstat shows (with Parallel port disabled): > FreeBSD Audio Driver (newpcm) May 26 2001 19:30:12 > Installed devices: pcm0: <SB16 DSP 4.11> at io 0x220 irq 7 drq 1:5 (1p/1r > channels duplex) > > ----- > dmesg with Parallel port enabled in BIOS on IRQ5 and enabled in kernel > config: > ppc0: <Parallel port> at port 0x278-0x27f irq 5 on isa0 > ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode > lpt0: <Printer> on ppbus0 > lpt0: Interrupt-driven port > sbc0: <SoundBlaster 16> at port 0x220-0x22f irq 7 drq 1 flags 0x15 on isa0 > sbc0: alloc_resource > device_probe_and_attach: sbc0 attach returned 6 > > cat /dev/sndstat shows (with Parallel port enabled in BIOS on IRQ5 and > enabled in kernel config): > cat: /dev/sndstat: Device not configured > > > -- > | David L. Hays, Jr. | david@elfland.net | http://www.elfland.net | > It is very difficult to prophesy, especially when it pertains to the future. > > > 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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