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Date: Thu, 13 Jan 2005 23:21:18 +0200
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Subject: Re: vt8237 chipset & freebsd 5.3 = no audio
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Gabriel Latour wrote:
> Hi!
> 
> I just installed FreeBSD 5.3 on a VIA KM400 based chipset motherboard. 
> The audio is the VT8237 audio chipset.
> 
> No sound is produced!!!
> 
> #kldload snd_via8233.ko
> 
> #cat > /dev/sndstat
> FreeBSD Audio Driver (newpcm)
> Installed devices:
> pcm0: <VIA VT8237> at io 0xeb00 irq 22 kld snd_via8233 (5p/1r/0v 
> channels duplex default)
> 
> #dmesg | grep pcm
> pcm0: [GIANT-LOCKED]
> pcm0: <Unknown AC97 Codec (id = 0x56494170)>
> pcm0: detached
> 
> I tried that hack with no luck:
> 
> --- sys/dev/sound/pcm/ac97.c.orig       Tue Nov 11 23:15:17 2003
> +++ sys/dev/sound/pcm/ac97.c    Tue Aug 10 23:58:11 2004
> @@ -124,6 +124,7 @@
>          { 0x41445360, 0x00, 0, "AD1885",        0 },
>          { 0x41445361, 0x00, 0, "AD1886",        ad1886_patch },
>          { 0x41445362, 0x00, 0, "AD1887",        0 },
> +       { 0x41445368, 0x00, 0, "AD1888",        ad198x_patch },
>          { 0x41445363, 0x00, 0, "AD1886A",       0 },
>          { 0x41445370, 0x00, 0, "AD1980",        ad198x_patch },
>          { 0x41445372, 0x00, 0, "AD1981A",       0 },
> 
> Now can somebody help me?
> 
> Thanks!
> 

Shouldn't it be 0x56494170 instead of 0x41445368 on that patch.
What does dmesg say after that patch?

Is mixer pcm/vol set to 0?