Date: Mon, 10 Apr 2000 23:12:43 -0700 (PDT) From: phiber@phiber.com To: freebsd-gnats-submit@FreeBSD.org Subject: kern/17923: SB16 ISA-PnP sometimes produces loud static with pcm driver Message-ID: <200004110612.XAA57107@freefall.freebsd.org>
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>Number: 17923 >Category: kern >Synopsis: SB16 ISA-PnP sometimes produces loud static with pcm driver >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Apr 10 23:20:01 PDT 2000 >Closed-Date: >Last-Modified: >Originator: Mark Abene >Release: 4.0-RELEASE >Organization: Crossbar Security, Inc. >Environment: FreeBSD ziggurat.phiber.com 4.0-RELEASE FreeBSD 4.0-RELEASE #3: Sun Apr 9 00:01:28 EDT 2000 root@ziggurat.phiber.com:/usr/src/sys/compile/ZIGGURAT alpha >Description: I'm using an Alpha PC164 with an original SB16 ISA-PnP card. When playing mp3's, with either xmms 1.0.1 or mpg123q, I randomly get LOUD static instead of the expected output. If the song starts fine, it will play fine in its entirety. The problem happens at random when you first try to play an mp3. If you stop it and try again, it usually plays just fine. I'm simply doing a "device pcm" in my kernel config file. The card is detected and initialized just fine. dmesg produces: sbc0: <Creative ViBRA16X> at port 0x220-0x22f,0x330-0x331,0x388-0x38b irq 5 drq 1,3 on isa0 sbc0: setting card to irq 5, drq 1, 3 sbc0: interrupting at ISA irq 5 pcm0: <SB DSP 4.16 (ViBRA16X)> on sbc0 For what it's worth, I reported this problem on the freebsd-alpha mailing list, and another user said he has the identical problem on an *intel* box with the same soundcard, so this may not be alpha specific. >How-To-Repeat: Play a series of mp3's with xmms. It will eventually hit a song and play LOUD static. Stopping it and hitting play again, and typically it will then play fine. Or, play the same mp3 repeatedly with mpg123. On average, 1 out of 5 times it will screech static and has to be interrupted. >Fix: >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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