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I have a Toshiba 2595CDT (old laptop) with Debian Etch (2.6.18-3-686) installed. After installing and running alsaconf, and adjusting the levels in alsamixer, I can hear my microphone through the ...
  1. #1
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    Dec 2006
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    alsamixer, microphone, hear but not record

    I have a Toshiba 2595CDT (old laptop) with Debian Etch (2.6.18-3-686) installed. After installing and running alsaconf, and adjusting the levels in alsamixer, I can hear my microphone through the speakers, but no programs can. I've tried audacity, sound-recorder, and skype, and none of them get *any* sound, however all run and 'record' with no errors. I also have tried every believable option in in alsamixer, switching the capture device from line to mic, unmuting everything, etc., etc..

    This is the relevant (I think) section from lsmod: (added the dashes)

    snd_es1968-------------26976 1
    tsdev-----------------------7520 0
    gameport-----------------14632 1 snd_es1968
    snd_ac97_codec--------83104 1 snd_es1968
    snd_ac97_bus-----------2400 1 snd_ac97_codec
    snd_pcm_oss------------38368 0
    snd_mixer_oss----------15200 1 snd_pcm_oss
    snd_pcm-------------------68644 3 snd_es1968,snd_ac97,snd_pcm_oss
    snd_timer------------------20996 1 snd_pcm
    snd_page_alloc----------9640 2 snd_es1968,snd_pcm
    snd_mpu401_uart------8064 1 snd_es1968
    shpchp--------------------33024 0
    snd_rawmidi-------------22560 1 snd_mpu401_uart
    snd_seq_device---------7820 1 snd_rawmidi
    pci_hotplug--------------28704 1 shpchp
    evdev----------------------9088 1
    intel_agp-----------------21148 1
    yenta_socket------------24460 3
    i2c_piix4------------------8140 0
    floppy---------------------53156 0
    snd------------------------47012 11 snd_es1968,snd_ac97_codec,snd_pcm_oss,
    snd_mixer_oss,snd_pcm,snd_timer,snd_mpu401_uart,sn d_rawmidi
    snd_seq_device


    and a line from lspci:

    00:0c.0 Multimedia audio controller: ESS Technology ES1978 Maestro 2E (rev 10)


    If the entire outputs of either of those should be posted, I can do that.
    Looked around on Google, and found many similar problems. The only fix I saw but couldn't try had something to do wtih ADC and DAC switches, which my alsamixer doesn't have. I guess that has something to do with the driver ..?
    As best I can remember, the onboard card Is a realtek ac97, so I think the drivers are right (alsaconf chose them).
    If anyone has any hints or ideas, they would be greatly appreciated! Thank you!

  2. #2
    Linux User
    Join Date
    Feb 2006
    Posts
    484
    i think you need software input mixing with alsa dsnoop plugin
    you can get some instruction from here
    http://www.alsa-project.org/alsa-doc...module=Generic

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