Date: Thu, 31 May 2001 20:49:45 -0700 (PDT) From: "David L. Hays, Jr." <elfkinz@elfland.net> To: freebsd-questions@freebsd.org Subject: Problem with sound card and lpt port on non-standard IRQs Message-ID: <Pine.BSF.4.21.0105312044070.14754-100000@shell2.ba.best.com>
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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. 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 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 # 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
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