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I have a Dell XPS M1530 with Xubuntu 12.10. My Fn + Up Arrow and Down Arrow for adjusting screen brightness work perfectly fine, but using the Fn key with the function numpad does not work. These used to work with an old version of Ubuntu or Fedora a few years ago, but I can't remember what version(s).

Actual keys:

7  8  9  0
 U  I  O  P
  J  K  L  :
   M     .  /

Fn numpad keys:

7  8  9  /
 4  5  6  *
  1  2  3  -
   0     .  +
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PRESS Fn+Shift+Numpadkey. It works! – user158707 May 14 '13 at 21:07
Wow! I can't believe I didn't try that. Thanks, it works. Post it as an answer and I'll accept it. – cpburnz May 18 '13 at 2:49

1 Answer 1

up vote 0 down vote accepted

As user158707 pointed out, all I needed to use was Fn+Shift+a numpad key. Or simply turn on numlock and then just use Fn+a numpad key

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