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'p' key is somehow mapped to 'mute'

911 Views 8 Replies Latest reply: Mar 18, 2013 9:57 AM by random.vamp RSS
random.vamp Calculating status...
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Apr 26, 2012 1:56 PM

Sometime in the last week the 'p' key on my MacBook Pro (2008) keyboard started to behave like the "mute" key, so that any time I type 'p' it additionally mutes/unmutes the volume and pops up the transparent volume indicator on the screen.  This is highly aggravating but I have yet to figure out what caused this or how to correct this.  I've verified that the Keyboard Shortcuts in the Keyboard preference pane doesn't have anything for mute (I don't see 'mute' as an option there at all), so any other suggestions would be very welcome.

MacBook Pro (15-inch Late 2008), Mac OS X (10.6.8)
  • Austin Kinsella1 Level 6 Level 6 (11,505 points)
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    Apr 26, 2012 2:03 PM (in response to random.vamp)

    Try restoring defaults in keyboard preferences.

  • binarian Calculating status...
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    Sep 7, 2012 4:21 AM (in response to random.vamp)

    This sounds disturbingly familiar to a problem I have.

    My late model 2009 mbp's hard drive was failing, causing all sorts of I/O errors, including random key events and remappings.  I put in a new hard drive and reinstalled from scratch, and transferred NOTHING to the new install.  the I/O events have stopped triggering wildly, but the remappings stayed.  For me,  the following keys all trigger the mute button:

    0 - p \ ; / <enter>

     

    Since the problem survived an os reinstall, that suggests it is a hardware issue rather than a software one.

     

    Playing with an arduino should not have affected anything.  Not saying it didn't, but it shouldn't have.  Whatever firmware that exists that handles the keyboard is more or less untouchable.

     

    Binarian

  • dodg Calculating status...
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    Mar 18, 2013 2:22 AM (in response to random.vamp)

    This issue is haunting me for the past 3 weeks, did you get any answer to that? did you solve it?

    BTW - If I hit the mute key it acually outputs 'p' as well.

    Please help (it is almost impossible to write w/o using 'p'...)

  • binarian Level 1 Level 1 (0 points)
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    Mar 18, 2013 5:42 AM (in response to dodg)

    Unfortunately, no.  I ended up getting a new laptop (it was time for an upgrade anyway).  I took the old one to a non-apple repair store in NYC and they repaired it pretty well.  Only one or two extra keys trigger the mute key now, which is an improvement over the entire right half of the keyboard.  In any case, I have turned down the volume al the way, and don't use that machine for anything involving audio.

     

    I know it *****, but if you can afford a new machine, it's not a terrible way to go.  You can still use the old one for research purposes or something.  A second monitor is great for most applications, but a second machine altogether, I have found, is even better.

     

    Binarian

  • dodg Level 1 Level 1 (0 points)
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    Mar 18, 2013 5:55 AM (in response to binarian)

    I bought it 13 months ago, I was hoping this is not a hardware problem, but it looks like yours was.

    The only solution I found was to have the function keys work as regular function keys (mute=f10) and to map f10 to nothing. I'll stick to that for now.

    Thanks for the relpy

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