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Fn keys on D420


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I have some doubts about the Fn, or, Function Keys on my SL 10.6.8 on a Dell D420.


I've tried one on one key to see the function, and the ones i've discovered is the combine of Fn + F5 and Fn + 12, that decrease and increase brightness, respectively.


So, if anyone know something about the Fn buttons and his functions (obviously), let me know.




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Most Fn combinations work as per blue labels on keys, some don't do anything:

  • Fn+End = mute on/mute off
  • Fn+PgUp/PgDown = audio level
  • Fn+Up/Down = brightness adjustment
  • Fn+Left = auto brightness
  • Fn+Esc (not F1) = sleep (make sure hibernate mode is set to 0 first)
  • All Fn+NumPad keys work as labelled
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