Re: [gentoo-user] Sound issue - can't use /dev/dsp

["Andrey Vul" <andrey.vul@gmail.com>]

On Thu, Oct 30, 2008 at 12:41 PM, Andrew MacKenzie <amackenz@edespot.com> wrote:
> My MythTV Gentoo box has recently started having issues recording sound.
> The TV tuner re-plays audio through the "mic" interface on my soundcard.
> It has worked for months, but now MythTV can't read anything from /dev/dsp.
>
> Any device that uses ALSA directly seems to work fine (like TVTime which
> plays TV with audio just fine) - only those that rely on /dev/dsp seem to
> have trouble.  My simple test shows this:
>
> # cat /dev/dsp > /dev/null
> cat: /dev/dsp: Input/output error
>
> This was run as root.  Perms are fine:
>
> crw-rw---- 1 root audio 14, 3 2008-10-03 08:56 /dev/dsp
>
> Myth user is in audio group (always has been).
>
> Has something changed in ALSA that I didn't catch?  I don't see anything in
> my logs or dmesg that shows a problem.  My /etc/asound.conf is as follows:
> pcm.nforce-hw {
>        type hw
>        card 0
> }
> pcm.!default {
>        type plug
>        slave.pcm "nforce"
> }
> pcm.nforce {
>        type dmix
>        ipc_key 1234
>        ipc_perm 0660
>        slave {
>                pcm "hw:0,0"
>                period_time 0
>                period_size 1024
>                buffer_size 4096
>                #rate 44100
>                rate 48000
>        }
> }
> ctl.nforce-hw {
>        type hw
>        card 0
> }
>
>
> I have tried without this asound.conf and see the same issue.
Try using alsaconf as root.


-- 
Andrey Vul

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