[APP] DDCCTL - Control HDMI Display Audio Volume

Discussion in 'HDMI Audio' started by Charmeleon, Jan 17, 2015.

  1. Charmeleon

    Charmeleon

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    Jan 17, 2015 at 9:53 PM #1
    Charmeleon

    Charmeleon

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    [APP] DDCCTL - Control HDMI Display Audio Volume

    DDCCTL 1.0

    Volume control for HDMI displays is disabled on OS X. Use this app to control the volume of your HDMI display speakers using the F10, F11 and F12 keyboard keys.

    Screen Shot 2015-01-17 at 22.20.22.png

    Guide


    • Download DDCCTL.zip and extract the application to /Applications
    • Open "System Preferences > Sound" and choose the HDMI input
    • Open "System Preferences > Users & Groups > Login items" and add DDCTL.app
    • Open "System Preferences > Keyboard > Keyboard" and select "Use all F1, F2, etc. keys as standard function keys"
    • Open "System Preferences > Keyboard > Shortcuts" and change change any shortcut that uses the F10, F11 or F12 key to another key, even if it is unselected (!)

    Screen Shot 2015-01-17 at 22.21.36.png Screen Shot 2015-01-17 at 22.22.14.png

    Limitations


    • Only works for HDMI displays with "DDC/CI" enabled
    • Currently only changes main display audio volume
    • Currently shortcuts cannot be changed
    • Only tested on OS X 10.10 Yosemite

    Downloads

    View attachment DDCCTL.zip
    View attachment DDCCTL_src.zip

    License: GNU GPLv3
    Many thanks and credits to: jontaylor, SJ_UnderWater
     
  2. northamerican

    northamerican

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    Jun 8, 2015 at 12:40 AM #2
    northamerican

    northamerican

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    is this supposed to work with displayport -> hdmi -> tv ?

    it's a vizio tv that supports only CEC. not sure about DDC.

    it seems literally impossible to control the volume of my tv without a remote.

    the volume bar moved but it doesn't adjust the volume...
     
  3. hng

    hng

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    Feb 23, 2017 at 11:28 PM #3
    hng

    hng

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    Thanks, it works in Sierra; however, the F11 key doesn't work to decrease volume.
    F10 key - mute volume : OK.
    F12 key - increase volume: OK.
    F11 key - decrease volume: does not work.
     
  4. otropatolucas

    otropatolucas

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    Mar 18, 2017 at 6:51 PM #4
    otropatolucas

    otropatolucas

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    Thanks a lot, works great in Sierra for me, also F11.
     
  5. lendon

    lendon

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    Sep 30, 2017 at 5:36 AM #5
    lendon

    lendon

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    It works in 10.12.1~10.12.6
    My VGA= GTX1060 and another PC is GTX950
    through hdmi port
    it works perfect!
    1.png 2.png 3.png
     

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