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Thread: Sound and Mic Problems on EeePC 1018p

  1. #1
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    Sound and Mic Problems on EeePC 1018p

    I have an Asus EeePC 1018p and I'm having trouble debugging an audio problem in Lucid. The internal microphone does not work, nor does the headphone jack or external mic input. I've tried fiddling with alsamixer, pavucontrol (some fixes involve setting turning down the left or right capture channels), etc., but haven't had any success.

    It seems that many people with EeePCs (other models) have fixed the problems with what I mentioned above, but it's no use for me. I've also booted into UNR to see if the modified kernel that it ships with fixes any problems, but nothing changed.

    Any ideas? I don't even know which logs to look in to find the issue.

    Here is some information on my system if it helps.

    Code:
    ALSA Audio Debug v0.1.0 - Tue Jul 13 14:02:40 CEST 2010
    http://alsa.opensrc.org/aadebug
    http://www.gnu.org/licenses/gpl.txt
    
    Kernel ----------------------------------------------------
    Linux ####### 2.6.32-23-generic #37-Ubuntu SMP Fri Jun 11 08:03:28 UTC 2010 x86_64 GNU/Linux
    
    Loaded Modules --------------------------------------------
    snd_hda_codec_realtek   279040  1 
    snd_hda_intel          25677  6 
    snd_hda_codec          85759  2 snd_hda_codec_realtek,snd_hda_intel
    snd_hwdep               6924  1 snd_hda_codec
    snd_pcm_oss            41394  0 
    snd_mixer_oss          16299  1 snd_pcm_oss
    snd_pcm                87882  5 snd_hda_intel,snd_hda_codec,snd_pcm_oss
    snd_seq_dummy           1782  0 
    snd_seq_oss            31219  0 
    snd_seq_midi            5829  0 
    snd_rawmidi            23420  1 snd_seq_midi
    snd_seq_midi_event      7267  2 snd_seq_oss,snd_seq_midi
    snd_seq                57481  6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
    snd_timer              23649  2 snd_pcm,snd_seq
    snd_seq_device          6888  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
    snd                    71106  22 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
    snd_page_alloc          8500  2 snd_hda_intel,snd_pcm
    
    Dev Snd ---------------------------------------------------
    by-path  controlC0  hwC0D0  pcmC0D0c  pcmC0D0p	seq  timer
    
    CPU -------------------------------------------------------
    model name	: Intel(R) Atom(TM) CPU N450   @ 1.66GHz
    cpu MHz		: 1667.000
    model name	: Intel(R) Atom(TM) CPU N450   @ 1.66GHz
    cpu MHz		: 1667.000
    
    RAM -------------------------------------------------------
    MemTotal:        1014136 kB
    SwapTotal:       1033208 kB
    
    Hardware --------------------------------------------------
    00:00.0 Host bridge: Intel Corporation N10 Family DMI Bridge

  2. #2
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    Re: Sound and Mic Problems on EeePC 1018p

    Bump bump...Is this in the right forum?

  3. #3
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    Re: Sound and Mic Problems on EeePC 1018p

    OK, well I've submitted this information to the launchpad bug found here:

    https://bugs.launchpad.net/ubuntu/+bug/601518

    Is there anything else I should do?

  4. #4
    Join Date
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    Ubuntu Gnome 14.04 Trusty Tahr

    Re: Sound and Mic Problems on EeePC 1018p

    asus models seem to require more fiddling than any other. It's probably workable.
    Can you post the output of these terminal commands for me please:
    Code:
    uname -a
    aplay -l
    dpkg -l | grep "alsa"
    head -n 1 /proc/asound/card*/codec#*
    Terminal="Applications->Accessories->Terminal"
    Please also include the make/model of your PC/Laptop.
    Please post text output using code tags (the # in toolbar)

  5. #5
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    Re: Sound and Mic Problems on EeePC 1018p

    Thanks for the help!

    Code:
    uname -a
    ------------------
    Linux 2.6.32-24-generic #38-Ubuntu SMP Mon Jul 5 09:20:59 UTC 2010 x86_64 GNU/Linux
    
    
    aplay -l
    ------------------
    **** List of PLAYBACK Hardware Devices ****
    card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
      Subdevices: 0/1
      Subdevice #0: subdevice #0
    
    
    dpkg -l | grep "alsa"
    ------------------
    ii  alsa-base                                                       1.0.22.1+dfsg-0ubuntu3                          ALSA driver configuration files
    ii  alsa-utils                                                      1.0.22-0ubuntu5                                 ALSA utilities
    ii  bluez-alsa                                                      4.60-0ubuntu8                                   Bluetooth audio support
    ii  gstreamer0.10-alsa                                              0.10.28-1                                       GStreamer plugin for ALSA
    
    
    head -n 1 /proc/asound/card*/codec#*
    ------------------
    Codec: Realtek ALC269

  6. #6
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    Re: Sound and Mic Problems on EeePC 1018p

    Using a Terminal="Applications->Accessories->Terminal"
    Open this file for editing:
    Code:
     gksudo gedit /etc/modprobe.d/alsa-base.conf
    Insert this line at the bottom:
    Code:
     options snd-hda-intel model=auto
    Save. Close. Reboot. Check your levels in alsamixer.
    Code:
     alsamixer
    Press <F6> to select the correct soundcard.
    Press <F3> to show playback levels. <F4> selects capture levels [or use <Tab>]
    Use the left/right arrow keys to select and up/down arrow keys to change levels. <M> to mute/unmute.
    Go to "System ->Preferences ->Sound" and make sure the correct soundcard is default and adjust your profile on the hardware tab.

  7. #7
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    Re: Sound and Mic Problems on EeePC 1018p

    No change as far as I can tell. Internal speakers still work. Still no output via headphone jack, nor is there any response from the internal microphone.

    Any other ideas?

  8. #8
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    Re: Sound and Mic Problems on EeePC 1018p

    First, for mic problem, check this.
    Gnome-alsamixer
    Using Alt+F2 run dialog
    Code:
     gnome-alsamixer
    Use 'Edit -> Sound Card Properties' menu to enable elements.
    Soundcard tab to select / adjust levels.
    To install:
    Code:
    sudo apt-get install gnome-alsamixer
    Then use pulseaudio volume control (pavucontrol) or 'Sound Preferences' to select and unmute your mic in 'Input Devices' tab.

    From alsa documentation:
    Capture Problems
    ~~~~~~~~~~~~~~~~
    The capture problems are often because of missing setups of mixers.
    Thus, before submitting a bug report, make sure that you set up the
    mixer correctly. For example, both "Capture Volume" and "Capture
    Switch" have to be set properly in addition to the right "Capture
    Source" or "Input Source" selection. Some devices have "Mic Boost"
    volume or switch.

    When the PCM device is opened via "default" PCM (without pulse-audio
    plugin), you'll likely have "Digital Capture Volume" control as well.
    This is provided for the extra gain/attenuation of the signal in
    software, especially for the inputs without the hardware volume
    control such as digital microphones. Unless really needed, this
    should be set to exactly 50%, corresponding to 0dB -- neither extra
    gain nor attenuation. When you use "hw" PCM, i.e., a raw access PCM,
    this control will have no influence, though.

  9. #9
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    Re: Sound and Mic Problems on EeePC 1018p

    hmm. All devices are on in alsamixer, gnome-alsamixer, and pavucontrol. Mic Boost, Capture, and Front Mic are all at 100%, as are Speaker, PCM, and Master.

    Something funny though--the input in pavucontrol has a non-zero signal when the output slider level is set to something other than zero--even when output is muted. If the output slider is at zero, there is never any input signal.

    Also, pavucontrol seems to think that I have a stereo mic, but it's mono. I've read that setting one slider to ~90 and the other to ~10 will fix the problem, but I haven't had any luck. Every time I restart pavucontrol, the two channels are locked to one another again.

    Cheers.

  10. #10
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    Re: Sound and Mic Problems on EeePC 1018p

    Try removing your pulse settings:
    Code:
    rm -r ~/.pulse ~/.asound* 
    sudo rm /etc/asound.conf
    Logout/in.
    Now try again. The stereo mic is an issue. Turn the right channel all the way down.

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