Audio don't work (device dsp)

From: Profeta Abacuc (profetab_at_yahoo.it)
Date: 02/25/05

  • Next message: Profeta Abacuc: "Re: Audio don't work (device dsp)" 
    To: fedora-list@redhat.com
Date: Fri, 25 Feb 2005 00:56:36 +0100

    I've Fedora core 3, kernel 2.6.10-1.766_FC3 - And I use Kde 3.3.1

    My Audio board:
    # lspci | grep audio
    00:0a.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev
    06)

    Since yesterday, audio was working. But after I used skype (all ok,
    after editing in audio mixer) my system crash on exiting from skype. So,
    after reboot I've this error:

    Sound server informational message:
    Error while initializing the sound driver:
    device: default can't be opened for playback (No such device)
    The sound server will continue, using the null output device.

    i.e. system can't open /dev/dsp device (no such file or directory). But,
    before re-boot I had dsp in /dev dir!!

    So I re-create dsp by MAKEDEV or mknod.. su root:
    mknod /dev/dsp c 14 3
    and then chmod 666 /dev/dsp

    Why major and minor 14 3?
    'cause..
    cat /proc/devices
    Character devices:
      1 mem
      4 /dev/vc/0
      4 tty
      4 ttyS
      5 /dev/tty
      5 /dev/console
      5 /dev/ptmx
      7 vcs
     10 misc
     13 input
     14 sound
     29 fb
     36 netlink
    108 ppp
    116 alsa
    128 ptm
    136 pts
    180 usb
    226 drm

    Block devices:
      1 ramdisk
      2 fd
      3 ide0
      9 md
     22 ide1
    253 device-mapper
    254 mdp
    [/quote]

    Btw, after creating device.. I've always same problem! And dsp disappear
    from my dev dir!!

    So, I look at dmesg output:

    dmesg output:
    AC'97 0 does not respond - RESET
    AC'97 0 access is not valid [0xffffffff], removing mixer.
    EMU10K1_Audigy: probe of 0000:00:0a.0 failed with error -5

    ***! Maybe problem it's here! But, what's problem!?

    I look at modules:
    # lsmod | grep snd
    snd_emu10k1_synth 7873 0
    snd_emux_synth 38593 1 snd_emu10k1_synth
    snd_seq_virmidi 6593 1 snd_emux_synth
    snd_seq_midi_event 8385 1 snd_seq_virmidi
    snd_seq_midi_emul 6593 1 snd_emux_synth
    snd_seq 55121 4
    snd_emux_synth,snd_seq_virmidi,snd_seq_midi_event,snd_seq_midi_emul
    snd_emu10k1 92997 1 snd_emu10k1_synth
    snd_rawmidi 25953 2 snd_seq_virmidi,snd_emu10k1
    snd_seq_device 8525 5
    snd_emu10k1_synth,snd_emux_synth,snd_seq,snd_emu10k1,snd_rawmidi
    snd_ac97_codec 67489 1 snd_emu10k1
    snd_pcm_oss 47989 0
    snd_mixer_oss 17089 1 snd_pcm_oss
    snd_pcm 93001 3 snd_emu10k1,snd_ac97_codec,snd_pcm_oss
    snd_timer 29125 2 snd_seq,snd_pcm
    snd_page_alloc 9541 2 snd_emu10k1,snd_pcm
    snd_util_mem 4801 2 snd_emux_synth,snd_emu10k1
    snd_hwdep 8901 2 snd_emux_synth,snd_emu10k1
    snd 52645 12
    snd_emux_synth,snd_seq_virmidi,snd_seq,snd_emu10k1,snd_rawmidi,snd_seq_device,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_hwdep

    That's all!

    I've not others ideas!

    I tried also by system-config-sound, but audio test fail 'cause it can
    find device. In the end, I've tried to upgrade my system by CD's Fedora
    Core 3. Nothing, and now I've not system-config-sound in my dir !!

    HELP ME, PLS!!

    G. 

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