Date: Wed, 26 May 1999 22:02:52 +0800 (CST) From: Michael Robinson <robinson@netrinsics.com> To: freebsd-stable@freebsd.org Subject: Mystery DSP behavior Message-ID: <199905261402.WAA04181@netrinsics.com>
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I have a Toshiba Tecra 510CDT. Under 2.2.x, I had no problems with the sound system. Since upgrading to 3.x (from the first 3.0-RELEASE until the current -STABLE), if I send a high-bitrate audio stream to /dev/sb0 (particularly 128k mpg123 playback), it produces static and popping sounds (sort of like a heavily damaged 45rpm record). If I drop the bitrate by a factor of two (-2 switch) the quality improves significantly, but not to the point it was with 2.2.x. After the most recent upgrade, I happened to notice this console message: SoundBlaster: DSP Command(0xd4) timeout. IRQ conflict ? However, there doesn't appear to be: % dmesg | grep -i irq atkbd0 irq 1 on isa psm0 irq 12 on isa sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa sio1 at 0x2f8-0x2ff irq 3 on isa ppc0 at 0x378 irq 7 on isa wdc0 at 0x1f0-0x1f7 irq 14 on isa wdc1 at 0x170-0x177 irq 15 on isa fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa sb0 at 0x220 irq 5 drq 1 on isa pcic: controller irq 9 Does anyone have any suggestions as to what the problem might be or how to go about fixing this? -Michael Robinson To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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