My mute key isn't working properly

Discussion in 'Mac Basics and Help' started by rbf1138, Jul 14, 2012.

  1. rbf1138 macrumors 6502

    Dec 22, 2007
    The icon comes up on the screen when I hit F10/Mute on my 2012 Air, but it doesn't silence the sound. I've used a USB DAC so that may have changed some functionality, but I've checked in my sound settings and I've set it back to the default output but it's still not working. Any ideas/fixes?
  2. MarkMS macrumors 6502a

    Aug 30, 2006
    If you altered the settings and are sure they are right, I'd probably try a PRAM reset. Some sound settings are stored there, so it might help.

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