[PATCH] fix snd_ich support for Asus M2400N

Stefan Walter sw at gegenunendlich.de
Tue Feb 24 02:34:54 PST 2004


Autrijus Tang, 24.02.04, 00:21h CET:

> Hi there.  I'm not on -multimedia, so sorry for the late reply.  Please
> Cc me on this thread. :-)

As there haven't been replies to this thread from the others, I cc'd
everyone I know having the same problem on an ASUS M2400N.

> > > It works by backporting
> > > the legacy support for NAMBAR/NABMBAR from 
> > > 5.1-RELEASE, instead of using the newer and broken
> > > MMBAR/MBBAR.
> >
> >	I've quite confused by the statement above.  I think you mean
> > that FreeBSD-5.1+ has a problem where...and we need to enable
> > legacy mode on the ich4(only) by poking a register?
> 
> No...  Please cf. misc/61388's Description:
>     The ASUS M2400N Notebooks have a SigmaTel sound device which
>     worked perfect with 5.0R and 5.1R. Since 5.2R it doesn't work anymore.
> 
> So you see, 5.0R and 5.1R worked fine, then 5.2R broke it by lumping
> ICH4 together with ICH5 code, thus breaking it.  My patch restored the 5.1R
> behaviour for ICH4 and hence fixing the problem.
> 
> > Are you confident that if I commit this patch, it won't
> > disrupt other ich users? (It would be helpful if others with ich
> > hardware would let us know :) )
> 
> I'm reasonably confident.  It won't be any worse than the 5.1R
> situation, at least.  And 5.2R is broken here anyway. :-)
> 
> But yes, feedback from other ich4 users will be appreciated.

As you wish:

pcm0: <Intel ICH4 (82801DB)> port 0xe100-0xe13f,0xe000-0xe0ff at device 31.5 on pci0
pcm0: <SigmaTel STAC9721/23 AC97 Codec>

That's on an ASUS M2400N as well. So far, sound works fine again.
Thanks, Autrijus!

Stefan
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