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ALSA and OSS driving-me nuts! :(
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viniciusferrao
Tux's lil' helper
Tux's lil' helper


Joined: 28 Aug 2005
Posts: 83

PostPosted: Sun Aug 28, 2005 6:45 pm    Post subject: ALSA and OSS driving-me nuts! :( Reply with quote

Hi all...

I'm new in Linux scene, particular into Gentoo, and I always have problems with Linux audio system.

I use nForce4 onboard audio, Realtek ALC850 (mobo DFi NF4 Ultra-D) and simply I cannot configure the sound card to SIMPLY reproduce 2 sounds at same time, this is ridiculous :(

I've tryed everyting, using ALSA compiled in kernel, ALSA outside (atual situation), ALSA-OSS level, and I always get the error msg:

Code:

/dev/dsp is busy


My .asoundrc file is that:
Code:
pcm.dmixer {
    type dmix
    ipc_key 1024
    slave {
        pcm "hw:0,0"
        period_time 0
        period_size 1024
        buffer_size 8192
 rate 44100
    }

    bindings {
        0 0
        1 1
    }
}

pcm.dsp0 {
    type plug
    slave.pcm "dmixer"
}

pcm.!default {
        type plug
        slave.pcm "dmixer"
}

pcm.default {
 type plug
 slave.pcm "dmixer"
}

ctl.mixer0 {
    type hw
    card 0
}


So, I dont know what to do now... nothing about audio works correctly here... and ID games? hahaha... even with aoss quake3 I got a poor damaged sound output :(

Someone help-me please =/
[]'s

PS: Sorry my bad english!
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/carlito
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Joined: 31 Dec 2004
Posts: 451
Location: Belgium

PostPosted: Sun Aug 28, 2005 9:25 pm    Post subject: Reply with quote

Here you go.
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potatoface
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Joined: 18 Feb 2004
Posts: 542
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PostPosted: Sun Aug 28, 2005 9:29 pm    Post subject: Reply with quote

i also had problems at the beginning but now nearly everything works with alsa (or arts on kde).
if everything is screwed up i would unmerge and remerge it so that all configuration files are untouched.
and then follow this one:
http://www.gentoo.org/doc/en/alsa-guide.xml
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Dan Forever
Tux's lil' helper
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Joined: 13 Jun 2005
Posts: 79
Location: London, England

PostPosted: Sun Aug 28, 2005 11:22 pm    Post subject: Reply with quote

the nvidia drivers are oss, not alsa unfortunately, but they do support hardware mixing, which allows loads of sounds to play simultaniously. However, the intel8x0 drivers we use with alsa don't support HW mixing, so the only programs that will play sounds successfully when others are already working are those that cooperate with Alsa and use the software mixing.

I would recommend either following the alsa guide that Carlito linked, or try the nvidia-audio drivers. Both require removing Alsa from the kernel.
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viniciusferrao
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Joined: 28 Aug 2005
Posts: 83

PostPosted: Mon Aug 29, 2005 2:43 am    Post subject: Reply with quote

Dan Forever wrote:
the nvidia drivers are oss, not alsa unfortunately, but they do support hardware mixing, which allows loads of sounds to play simultaniously. However, the intel8x0 drivers we use with alsa don't support HW mixing, so the only programs that will play sounds successfully when others are already working are those that cooperate with Alsa and use the software mixing.

I would recommend either following the alsa guide that Carlito linked, or try the nvidia-audio drivers. Both require removing Alsa from the kernel.


I have follow the how-to 's but nothing changed =/

Is there any problem with nF4 Drivers?
[]'s
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blueworm
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Joined: 09 May 2003
Posts: 962

PostPosted: Mon Aug 29, 2005 5:17 am    Post subject: Reply with quote

Dan Forever wrote:
the nvidia drivers are oss, not alsa unfortunately, but they do support hardware mixing, which allows loads of sounds to play simultaniously. However, the intel8x0 drivers we use with alsa don't support HW mixing, so the only programs that will play sounds successfully when others are already working are those that cooperate with Alsa and use the software mixing.

I would recommend either following the alsa guide that Carlito linked, or try the nvidia-audio drivers. Both require removing Alsa from the kernel.

This is not exactly correct.
Only the nforce2 boards with MCP-T southbridge have the necessary hardware DSP for hardware mixing.
All other nvidia boards nf2,3,4 do not have hardware mixing.
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