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Thread: Lubuntu audio issues

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  1. #1
    Join Date
    Dec 2008

    Lubuntu audio issues


    I am running Lubuntu 12.04 Beta2 on my desktop and am having some audio issues.

    The issue: The problem comes in multiple parts.

    1. On a fresh install i had no audio. Levels were up on alsamixer. I installed pulseaudio and got volume.

    2. Here is what is happening. I have an optical out to my sound system. Thus my output is digital. When outputting audio, i have no control over the volume from the PC other than mute. Otherwise the volume coming from the PC is always on the highest level and i can only control it through my sound system.

    3. If i run an audio cable, analog out, i can control the volume through the PC.

    4. Except for mute. If i mute the volume from the keyboard key, the only way to unmute the volume is by left clicking the audio symbol in the LXpanel and unchecking mute. This occurs whether i am using analog or digital out.

    The specs:

    -Core i7, thus 64bit
    -integrated audio Realtek ALC889
    -there is also HDMI audio which it doesnt seem to default to that
    -i think these are the important specs.

    aplay -l:

    card 0: Intel [HDA Intel], device 0: ALC889 Analog [ALC889 Analog]
    Subdevices: 0/1
    Subdevice #0: subdevice #0
    card 0: Intel [HDA Intel], device 1: ALC889 Digital [ALC889 Digital]
    Subdevices: 1/1
    Subdevice #0: subdevice #0

    The issue is not Lubuntu recognizing my sound, its configuring Lubuntu to use the sound in the manner i desire. I know this is possible because i am coming from Ubuntu which has audio settings which allow me to select my audio preferences. If it helps in Ubuntu i select 'Digital Strereo (IEC958) Output.

    Any help would be appreciated, whether it be configuring my audio files to produce desired effect or an audio/volume control/preferences that gives me the option to do so.


    I spoke too soon. I have installed pulseaudio and pavucontrol on my Lubuntu system. The only issue i have now is getting the volume increase and decrease keys to interact with the Lubuntu volume control. Currently i can only adjust volume using the mouse on the control.


    Fixed. Needed to add the option -D pulse in the openbox rc.xml.

    So for users having difficulties with their audio settings in Lubuntu, i suggest installing pulseaudio and pavucontrol:
    sudo apt-get install pulseaudio pavucontrol
    Restart. In order to get your multimedia keys working, edit your openbox rc.xml:
    nano .config/openbox/lubuntu-rc.xml
    and edit the 'Keybinding for Volume management' section to the following:
        <keybind key="XF86AudioRaiseVolume">
          <action name="Execute">
            <command>amixer -q -D pulse sset Master 3%+ unmute</command>
        <keybind key="XF86AudioLowerVolume">
          <action name="Execute">
            <command>amixer -q -D pulse sset Master 3%- unmute</command>
    Hope this helps.
    Last edited by lun; April 11th, 2012 at 02:02 AM.

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