Date: Tue, 16 Apr 2002 23:24:35 +0300 (EEST) From: Adria Penisoara <ady@freebsd.ady.ro> To: FreeBSD-gnats-submit@FreeBSD.org Cc: cg@FreeBSD.org Subject: kern/37156: New CT5880 audio chipset signature Message-ID: <200204162024.g3GKOZrQ001092@sunny.home.ady.ro>
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>Number: 37156
>Category: kern
>Synopsis: New CT5880 audio chipset signature
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: update
>Submitter-Id: current-users
>Arrival-Date: Tue Apr 16 13:30:02 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Adria Penisoara
>Release: FreeBSD 4.5-STABLE i386
>Organization:
>Environment:
System: FreeBSD sunny.home.ady.ro 4.5-STABLE FreeBSD 4.5-STABLE #1: Sat Apr 13 22:01:31 EEST 2002 root@sunny.home.ady.ro:/usr/obj/usr/src/sys/XPHOME i386
Applies to all FreeBSD versions (both -STABLE and -CURRENT)
>Description:
The Gigabyte GA-7DRX+ motherboard (other models too) has a
Creative CT5880 audio chipset integrated on the motherboard but,
unfortunately, it seems to bear a new revision unknown to the pcm
driver. Also, maybe related to this, the AC97 codec seems to have
an invalid ID (0) which reders it unusable.
Here is the appropiate dmesg output (the same length in
verbose mode too):
pcm0: unknown revision 4 -- please report to cg@freebsd.org
pcm0: <Creative CT5880-?> port 0xc000-0xc03f irq 5 at device 14.0 on pci0
pcm0: ac97 codec invalid or not present (id == 0)
device_probe_and_attach: pcm0 attach returned 6
Windows recognizes the chipset as "Creative Sound Blaster PCI128"
and works without problems.
>How-To-Repeat:
Try configuring the PCM driver on such motherboards. Most probably
there are more motherboard models with this issue.
>Fix:
Modify the pcm signature table to recognize this chipset ?
If needed I can provide further (diagnostic) details.
>Release-Note:
>Audit-Trail:
>Unformatted:
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