misc/171191: driver support for cmi8787/8788 chipsets

James Powell james4591 at hotmail.com
Thu Aug 30 20:20:02 UTC 2012

>Number:         171191
>Category:       misc
>Synopsis:       driver support for cmi8787/8788 chipsets
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Class:          maintainer-update
>Submitter-Id:   current-users
>Arrival-Date:   Thu Aug 30 20:20:01 UTC 2012
>Originator:     James Powell
>Release:        FreeBSD 9.0 based PC-BSD 9.0
FreeBSD pcbsd-496 9.0-RELEASE-p3 FreeBSD 9.0-RELEASE-p3 #0: Tue Jun 12 02:52:29 UTC 2012     root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64
The snd_cmi driver for C-Media based sound cards does not support the CMI8787/8788 model chipsets.
Boot FreeBSD, or any derivative, with a C-Media cmi8787/8788 based sound card.
I was told this information provided, vai the freebsd-support mailing list, would assist in possibly a temporary patch possibly for the maintainer of the driver, however my last attempt at contacting the individual in development of the snd_cmi driver's email returned to me stating the e-mail was invalid.

This was from the log generated:

 none3 at pci0:5:4:0:	class=0x040100 card=0x82751043 chip=0x878813f6 rev=0x00 hdr=0x00
    vendor     = 'C-Media Electronics Inc'
    device     = 'CMI8788 [Oxygen HD Audio]'
    class      = multimedia
    subclass   = audio

The sound card in question is a CMI8788 derived ASUS Xonar DX PCIe.

I have attempted to remedy this using the ports collection's 4Front OSS driver, but all attempts to successfully load the driver result in a system that locks up, freezes, or refuses to boot.


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