Date: Tue, 10 Apr 2001 09:19:36 +0200 (CEST) From: Remy Nonnenmacher <remy@boostworks.com> To: dmobrien@lucent.com Cc: freebsd-multimedia@FreeBSD.ORG, ejc@bazzle.com Subject: Re: SB Vibra16x, no sound (fbsd 4.1 release) Message-ID: <200104100717.f3A7HHC68943@luxren2.boostworks.com> In-Reply-To: <Pine.BSF.3.96.1010409192747.14856A-100000@dmobrien.lra.lucent.com>
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On 9 Apr, Dan O'Brien wrote: > On Mon, 9 Apr 2001, Remy Nonnenmacher wrote: > >> On 8 Apr, Dan O'Brien wrote: > >> > I'm using FreeBSD 4.1 Release (off the cdroms) and can't get my Sound >> > Blaster Vibra16X sound card to make much sound. It is configured >> > correctly, probes nicely, good status, no kernel messages, mixer values >> > non-zero, and when I cat an AU file into /dev/audio I hear just a very >> > faint, very short sound segment thru amplified speakers (yes, I have them >> > plugged into the correct hole :-) > >> What is probably happening is that Creative Labs uses either AC97 >> standard mixers or private ones (unfortunetly the card keeps the SB16 or >> Vibra brand name). Check your card and look for a small chip (like >> 'CT-1297') or any other propritary mixer. If this is the case, trash >> your card. This thing is not supported. > > Well, I'm not sure what I'm looking at. The board says Sound Blaster > Model CT4170 at the top and (C) Creative Technology LTD 1977, Made in > Singapore, at the bottom. > > There is one big multi-lead chip on the left that looks like it traces to > all the socket tabs that plug into the ISA bus socket. This chip reads: > Vibra 16xv, Creative Tech '96, CT2511-SAT, AP9YL9727, Korea. (Is this the > proprietary chip?) > Nope. Seems OK. > There is a small 8 pin chip to its right that reads: TL072C. > > Up top, next to the cdrom sound input socket, there is a 14 pin chip that > reads: 77C255ST, MC3404. > > A few more small 8 pin chips scattered on the board. Then on the left, > next to the output/input sockets, a big chip that reads: TSA1517P, G12005, > YSH9725, (an amplifier I presume). > Seems to be Ops Amplifiers and integrated ones. > > Pitch this card? > I guess you can follow the previous advice of upgrading your system. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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