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    HP Laptop sound problem

    This isn't 14.04 specific, it was doing the same thing with 13.10 but I hoped it would have been fixed with this LTS release. Sadly it hasn't.

    Laptop - HP DV6645
    Chipset - Nvidia something or other
    Sound - NVIDIA Corporation MCP65 High Definition Audio (rev a1)

    The sound automatically mutes itself after a few seconds of inactivity, that's annoying in itself but not as annoying as the loud click it makes.

    The real problem comes when I plug headphones in. The audio software continually mutes/unmutes and makes never ending clicking noises through the speakers.

    Here's a video where you can see what I mean -




    Has anyone else encountered this, and does anyone know of a possible fix?

    Thanks .
    Last edited by GrumpyGit; Apr 30, 2014, 09:05 AM.

    #2
    https://wiki.ubuntu.com/Audio/Alsamixer
    PulseAudio controls underlying ALSA-level volume controls. To change the ALSA-level volume controls directly, you can do the following:

    Open a terminal. (The quickest way is the Ctrl-Alt-T shortcut.)
    Enter "alsamixer" and press the Enter key.
    You will now see a user interface. In this user interface, you can do the following:
    Select your correct sound card using F6 and select F5 to see recording controls as well
    Move around with left and right arrow keys.
    Increase and decrease volume with up and down arrow keys.
    Increase and decrease volume for left/right channel individually with "Q", "E", "Z", and "C" keys.
    Mute/Unmute with the "M" key. An "MM" means muted, and "OO" means unmuted. Note that a bar can be 100% full but still be muted, so do check for this.
    Exit from alsamixer with the Esc key.

    A caveat here: When you mute or unmute something, pulseaudio might pick it up and mute and unmute other controls, as well as PulseAudio's main mute.

    If you discover that you need to do something special here to make your sound work, it is likely a bug. Please report a bug using the "ubuntu-bug audio" command. Thanks!
    and

    https://wiki.ubuntu.com/PulseAudio#Troubleshooting
    "A nation that is afraid to let its people judge the truth and falsehood in an open market is a nation that is afraid of its people.”
    – John F. Kennedy, February 26, 1962.

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      #3
      OK found the solution here - http://askubuntu.com/questions/19120...ting-when-idle

      Disabled load-module module-suspend-on-idle in /etc/pulse/default.pa.

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