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Date:      Thu, 28 Oct 2010 21:06:49 -0700
From:      Liontaur <liontaur@gmail.com>
Cc:        FreeBSD questions <freebsd-questions@freebsd.org>
Subject:   Re: Resetting the sound system
Message-ID:  <AANLkTimtxvROAD3xR8M4QJ4gAo3jV3UOc7Mu2KON6tRU@mail.gmail.com>
In-Reply-To: <4CC9A8C9.1010200@yahoo.fr>
References:  <4CC9A8C9.1010200@yahoo.fr>

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2010/10/28 Micha=EBl Gr=FCnewald <michaelgrunewald@yahoo.fr>

> Dear list,
>
> the audio software I use sometimes seems to handle unappropriately its
> input and leave the sound system in a strange state.  When this happens, =
the
> lowest frequencies of the played sound are very attenuated and what is st=
ill
> audible sounds unpleasantly metallic.  Rebooting the machine immediately
> brings up the sound system in shape again, but it would be nice if they w=
ere
> a more sensible way to reset it!
>
> Here are the relevant lines of `dmesg`:
>
> pcm0: <VIA VT8237> port 0xe100-0xe1ff irq 22 at device 17.5 on pci0
> pcm0: [ITHREAD]
> pcm0: <VIA Technologies VIA1617A AC97 Codec>
> pcm0: <VIA DXS Enabled: DXS 4 / SGD 1 / REC 1>
>
> Best regards,
> Michael


Not sure if there's an easier way, but if you've got the audio driver
kldloaded then just unload and reload it. If it's compiled in your kernel
then I don't know.
kldunload snd_via8233
kldload snd_via8233

Mark



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